Introduction to interest | Interest and debt | Finance & Capital Markets | Khan Academy

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  • Опубликовано: 5 ноя 2024

Комментарии • 321

  • @WoodyWoodyATL
    @WoodyWoodyATL 9 лет назад +447

    "Rent on money" This is the best definition I have ever heard about "interest"

  • @madwilli3205
    @madwilli3205 7 лет назад +182

    They call it interest because people have no interest in loaning money for nothing. But the idea of receiving money on top of the money that they loaned makes the offer much more interesting.

    • @comedyman4896
      @comedyman4896 7 лет назад +25

      interesting

    • @ezracyr4932
      @ezracyr4932 7 лет назад +10

      interesting

    • @kommentieren52
      @kommentieren52 6 лет назад +17

      Im not a native speaker and i took your comment seriously for way to many seconds.

    • @TrionityIr
      @TrionityIr 5 лет назад +9

      Tell that to those lending money with negative interest rates.

    • @izzylewis7835
      @izzylewis7835 4 года назад

      u stupid

  • @DivayanshBargotra
    @DivayanshBargotra 3 месяца назад +5

    Sal is a gift to humanity. Up there towards the top on the list of the most important human beings ever.

  • @expertjacksonwilliams7368
    @expertjacksonwilliams7368 Год назад +172

    Taking the first step is the hardest, but 7 house later living off passive income since June 6, 2016. You’ve got to start taking steps to achieve your goal.

    • @nathanjane7729
      @nathanjane7729 Год назад

      I really want to start something for myself but the problem has always been not knowing where to start. What kind of investment would you advise? And what is the best way to follow it?

    • @justinscott6855
      @justinscott6855 Год назад

      Thanks for your response but how do I get access to your financial consultant? Can you share more info about him if you don’t mind.

    • @bendickson9414
      @bendickson9414 Год назад

      You can make a quick internet research with his name *JACKSON STEN MARSH*. The rest of the information is there for you to read and get in touch.

    • @hamad-to1rl
      @hamad-to1rl Год назад

      Wow!!! I know and I have been growing with him since 2018. His expertise has been the best for my financial journey. I havpe created a passive income over the years and life feels really better and easy for me. I feel so delighted to read these good reviews about him

    • @Mathew-bp5bm
      @Mathew-bp5bm Год назад

      That's a good decision if you start now. I invested in
      Stocks or Gold coins with the help of a Fin. consultant and was able to buy my second house last year September and hope to buy more if things keep going smoothly for me.

  • @fai411
    @fai411 4 года назад +33

    When you said, "Rent on money" I was like hands down one of the best definition

  • @CoreTendency
    @CoreTendency 13 лет назад +9

    Khan Academy is like making a school from "for Dummies" books... which is extremely effective, logical, and interesting. He makes education more personal.

  • @Australiana432
    @Australiana432 10 лет назад +88

    Thank you so much! I owe you a big part of my studies! Whenever I do not understand economics, statistics, math of finance, you are the one who helps me understand. So I wanted to say thank you!! You are an amazing Professor! Again very very thankful! :)

    • @ozgurkuzu2202
      @ozgurkuzu2202 6 лет назад +1

      :)))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))

  • @paul5324
    @paul5324 8 лет назад +21

    There's a formula for simple interest: A=P(1+it) You learn this for the Actuarial FM Exam. A is amount value, P is the principal, i is the interest rate, and t is time. Compound would be A=P(1+i)^t

  • @SheilaDuffy1950
    @SheilaDuffy1950 13 лет назад +1

    This is the best adult education I have ever imagined could help adults looking for classes regarding our interest in banking and purchasing a home.

  • @jemilagulston7742
    @jemilagulston7742 4 года назад +6

    This would help me a lot before I start a finance and economics course

  • @ANT9999
    @ANT9999 13 лет назад +1

    this is the first time ive ever seen something educational on the education section on the youtube home

  • @wcwyes
    @wcwyes 11 лет назад

    I hear clearly, and after watching all of his videos up to this point in order, it completely makes sense that he would say that. Watch the series on compound interest and the number e and you'll see as well that it's true. If you don't I don't expect you to be arguing anymore since you would be arguing with lack of knowledge.

  • @tomlindsay7861
    @tomlindsay7861 2 года назад +2

    Such a clear way of explaining a basic concept that is often over complicated. Thank you.

  • @ayasuliman6455
    @ayasuliman6455 5 лет назад +10

    Thank you so much! 👏🏻👏🏻👏🏻 it’s really good lessons you are providing here without putting fees and that’s such a huge thing these days ☹️ many thanks 🙏🏻 even big professors can’t do what you’re doing. Really grateful ✨

    • @rosiepark8834
      @rosiepark8834 10 месяцев назад

      Same. Better explanation then the professor in our school who get payed for bad explanation

  • @LyricalXilence
    @LyricalXilence 4 года назад +15

    Good gracious, where did to the 3rd power stuff come from. Lost me with compound interest

  • @lonewolf2547
    @lonewolf2547 4 года назад +2

    Its been 12 years, but still the best

  • @adis24in35
    @adis24in35 6 лет назад

    i swear this is how i had explained to myself, 'rent on money'! im 32 years old noob in finance...thats why sal hits the mark for even the uninitiated!

  • @rumit9946
    @rumit9946 14 лет назад

    Anyone who plans on getting a loan should watch this. Very nice.

  • @esseqaran7320
    @esseqaran7320 3 года назад +1

    Rent on Money this the Best defination

  • @satyamrai2577
    @satyamrai2577 2 года назад

    Sal is a gift to humanity.

  • @Zander101084
    @Zander101084 13 лет назад

    Sal, don't ever forget that you are the man!!!

  • @ajmichels14
    @ajmichels14 11 лет назад

    If you are referring to 5:45 no. This is what you owe overall. 1st year- $110 2nd year- $120 etc. You do not pay that at the end of the year, that's how much you owe. Your principal is multiplied by .1 every year (which is the interest rate, 10%) until you pay the principal.

  • @anoopsinghverma3393
    @anoopsinghverma3393 2 года назад +3

    Legend are watching in 2022💥

  • @mohamedisseahmed3827
    @mohamedisseahmed3827 9 лет назад +3

    I am thankful to Khan academy. keep up your great work.

  • @VickiBee
    @VickiBee 8 лет назад

    You could also teach it to people at Wells Fargo. I had a friend who dropped them cold over 5 years ago because she thought they were "the worst financial institution ever." She withdrew everything and told everyone who would listen about how they were the worst financial institution ever.

  • @dunializama4677
    @dunializama4677 3 года назад +1

    He teaches me more in 9 minutes than my teacher in a whole week and I think you for that

    • @dunializama4677
      @dunializama4677 3 года назад

      Thank*

    • @bobpop_2520
      @bobpop_2520 3 года назад +1

      then you have a preety bad teacher iguess

    • @greenchilistudioz4537
      @greenchilistudioz4537 3 года назад

      @@bobpop_2520 Even my math teacher barely help me understand mad compare to my college semester professor, that is telling lol

  • @anun9
    @anun9 12 лет назад

    because every year you get 10% interest, meaning the final total of every year is 110/100 which 1.1.
    So with your principal at 100, with 10% interest in mind it is 110/100 x 100 = 110. For the second year you can either calculate it by 110/100 x 110 or (110/100)^2 x 100

  • @wcwyes
    @wcwyes 11 лет назад

    He did say and now you've learned and he was referring to the compound interest and the number e series.

  • @MrDevin666
    @MrDevin666 13 лет назад +1

    This stuff is simple, BUT I have one question to ask for an answer. At 7:41 he changed it from 110 + 10%(110) to 110(1.1), where does that 1.1 come from?

  • @aznpwnsalot
    @aznpwnsalot 12 лет назад

    A better explanation of interest. It is extra that you have to pay to match the money's value with what it will be as money loses it's ability to purchase over time. We see this in economics where milk may be only 50 cents in the 60s and is now 2-3 dollars. This is called inflation. When i give someone money, and they give me the same amount back, i lose out on what i receive, i've gotten less money because i can buy less stuff with it. To compensate for that loss, we use interest.

  • @LNasterio
    @LNasterio 13 лет назад

    OMFG ... we spend like 2x1hour lectrue on this.
    and did not make any sense at all.
    yet you spend 10mins and I totally got it...

  • @saadabbasi2063
    @saadabbasi2063 Год назад

    IS THIS PLAYLIST IN RIGHT SEQUENCE?
    It feels like it contains videos from different playlists, i am willing to take on this course. Any input would be appreciable.

  • @scimotivateya9997
    @scimotivateya9997 3 года назад +1

    The playlist is endless.😐

  • @Animalchemy18
    @Animalchemy18 15 лет назад +1

    Do you have a touchscreen or are you just that good writing and drawing with your mouse? I notice you are using ms paint. anywhoo great stuff mate, keep it up and thanks!

  • @GREJFilmsLtd
    @GREJFilmsLtd 13 лет назад

    Note at 2:31 he writes 10/100 = $ 10%

  • @tahntalus
    @tahntalus 7 лет назад

    I wished sal would have used a new car loan as an example. Most car loans use simple interest thus making the illustration more practical. In his example sal is assuming the principle doesnt change, someone borrows $100 @ 10% interest and waiting x number of years to pay it back. No one does this most people will make subsequent payments over time thus reducing the principle.

  • @seanewing267
    @seanewing267 11 лет назад

    Is this whereI would start to learn about finance in general? I know there are several finance-related playlists.

  • @chatsociety
    @chatsociety 11 лет назад

    Thanks for clarifying what compound interest is exactly.

  • @mchen1025
    @mchen1025 11 лет назад +2

    wow~ it's been 9 months already. Thanks!!

  • @aznpwnsalot
    @aznpwnsalot 12 лет назад

    Interest to match the amount that we lost or more then the amount we lost to gain a profit. What this does is give us the incentive to let others borrow our money and delay our own consumption in hopes of being able to buy more in the future. If i lose money and i can't buy the game i wanted until next year, i will not be willing to lend someone the money.

  • @thingsthatlooklikeotherthi5134
    @thingsthatlooklikeotherthi5134 2 года назад +1

    👍Good Video

  • @sunilprajapat3660
    @sunilprajapat3660 6 лет назад

    in simple interest rate, after each year it should be 110 dollars. same because principle is same and interest is also same

  • @mchen1025
    @mchen1025 12 лет назад

    Please tell me what was the video before this video. You started this video by saying "well now you've learned what i think is quite possibly on of the most useful concepts in life, and you might already be familiar with it, but if you're not this will hopefully keep you from one day filing for bankruptcy" WHAT IS IT?!?!?! ANYONE, PLEASE! THANK YOU VERY MUCH!

  • @nene-ur2cw
    @nene-ur2cw 7 лет назад +3

    Lol actually hes one of the OG youtubers

  • @ashleymtsac3679
    @ashleymtsac3679 4 года назад

    Just in case. Is interest and interest rate the same thing?

  • @Soldier957
    @Soldier957 14 лет назад

    I'd like to hear Sal's comments on the financial info in the Zeitgeist films.....

  • @blackswaneducation3509
    @blackswaneducation3509 13 лет назад +1

    Very informative video! Very helpful lessons!

  • @iNinjaNotes
    @iNinjaNotes 13 лет назад

    @MrDevin666 1.1 is the same as 10% interest rate on top of your initial investment which is 100%, 110% is equal to 1.1.

  • @silverphoenix125
    @silverphoenix125 3 года назад

    Thanks for this! Great video!

  • @iNinjaNotes
    @iNinjaNotes 12 лет назад

    @NoughNeaux Each year you pay 10% of interest on the NEW balance. So in year one you owe $100 + 10% which is $100 * 1.1 = $110 (since you owe the principal loan and interest). The reason he squares 1.1 is because he is trying to shorten the expression. For instance, in year 4 you would owe...$100 x 1.1 x1.1 x1.1 x1.1 = $146. But instead you can shorten that expression to $100 (1.1) to the power of 4. Since there are four 1.1's

  • @AnhvanLe
    @AnhvanLe 7 лет назад +6

    There shouldn't be a "$" sign when calculating the interest rate. It should just be 10% instead of $10%

  • @FeniusAcademy
    @FeniusAcademy 4 года назад

    Nice video. Very well explained.

  • @mechribelaid
    @mechribelaid Год назад

    good presentation

  • @thybuilder
    @thybuilder 13 лет назад

    I gotta agree this is basic school education, do you learn this in collge americans ?

  • @querylight6680
    @querylight6680 8 лет назад

    Hello I stumbled upon this video when I was looking for your Share market and Stock and Options related videos, I could not find them anywhere on the channel . Can you help me locate the course or playlist. Thanks,

  • @jet4432
    @jet4432 4 года назад +1

    For me, the problem with trying to learn by watching videos like this is that I really lose the chain of thought when the person teaching something keeps going like: "t-the.. the.. now, er... the..." and things like that.
    But that's a pet peeve
    of mine

    • @greenchilistudioz4537
      @greenchilistudioz4537 3 года назад

      Everyone learns differently, his crude drawings and writing are hard to read, but for someone that learns through demonstration, I find video pretty informative if only watch it and listen closely to what he explains, depends on your learning disability with translating what learning method they use to explain how to do it.

  • @signonajoseph2351
    @signonajoseph2351 4 года назад

    Thanks.

  • @akaalex6202
    @akaalex6202 2 года назад

    bro who is this guy i’ve hear his voice like everywhere in the learning area

    • @kevinab3874
      @kevinab3874 2 года назад

      Khan, the CEO of Khan academy

  • @dog1648
    @dog1648 3 года назад +1

    This was so informative thank you

  • @hughie21
    @hughie21 13 лет назад

    This guy is awesome

  • @Nickuncle
    @Nickuncle 12 лет назад

    The notion that people think it's intelligent to argue about these things isn't even close to logical.

  • @MrDevin666
    @MrDevin666 13 лет назад

    @iNinjaNotes Yeah thanks for the reply, but I got it. He said that you undistribute the 110, which made no sense, he meant factor out 110.

  • @16yearoldwhiteboy
    @16yearoldwhiteboy 11 лет назад

    Actually I believe he did say "now you've learned" I think he was referring to the Binomial Theorem. Look at his Pre-Calculus playlist, this is video 17 out of 44 in the playlist.

  • @TrionityIr
    @TrionityIr 5 лет назад

    I'm watching this because of the negative interest rates floating around which after watching this video, I am more certain that our financial lenders have gone mad.

    • @pugorod3050
      @pugorod3050 5 лет назад

      Negative interest is a useful tool for artificially stimulating the economy, which is hardly something new when it comes to keynesians. What you should actually be worried about is the systemic problems that have forced countries to take such drastic actions in the first place.

  • @xdatgrlx
    @xdatgrlx 12 лет назад

    Which is why we call it "faith" and not logic, unlike the big bang theory.

  • @evasutherland603
    @evasutherland603 4 года назад

    MSc. Accounting Vs Finance: Which Should You Study?

  • @VanyahaHeights
    @VanyahaHeights 13 лет назад

    You rock! Thanks a lot! 10 minutes and it nailed me!

  • @Jotto999
    @Jotto999 13 лет назад

    Thanks very much!

  • @thybuilder
    @thybuilder 13 лет назад

    @RealFngDeal Tolerance and ignorance are sisters in this context. But as you wish, asking for decent, plausible and universal arguments to fundament an argument does not make someone "intolerant".

  • @jjackchung
    @jjackchung 4 года назад

    Excuse me but what program are you using to draw?

  • @hwt2009
    @hwt2009 14 лет назад

    i have a small inventory of bonds for sale.....do you have suggestions on how to find buyers?

  • @nadiakillen2761
    @nadiakillen2761 5 лет назад +1

    How can you know so much Mr. Khan, thank you for the great explanations

    • @dragons10000
      @dragons10000 4 года назад +1

      ikr, he covers every subject in school and uni, he is like 1 teacher university...

  • @brittanymyles7885
    @brittanymyles7885 2 года назад +1

    Earning 5.5 BTC after investing just about 0.5 BTC made me change my outlook as far as trading is concerned and I owe it all to Mr John darry his bitcoin trading platform essentially change my life and excited about that.

  • @thybuilder
    @thybuilder 13 лет назад

    @RealFngDeal Of course I believe in what I want, don't you ? I for one choose to believe in something that has enough proof to sustain it's argument.

  • @thirdplanet4471
    @thirdplanet4471 2 года назад

    I'm curious how the method 100(1.1)^10 would work of it was months instead of years

  • @vikramraghuwanshi9455
    @vikramraghuwanshi9455 4 года назад

    whatis agreat explations.

  • @slamnxgirlxjulie
    @slamnxgirlxjulie 16 лет назад

    your the best!!

  • @gaypikachu15
    @gaypikachu15 12 лет назад

    where did 1.1 come from? how did the equation 110 + 10%(110) turn into 100(1.1)2= $121 ? answer me

  • @lalsthefreak
    @lalsthefreak 15 лет назад +2

    heyyyyy great viddd! i LAV it to teach me all these n3w things!

  • @Kimjongil3000
    @Kimjongil3000 13 лет назад

    Hooray! The Harvard video is gone!

  • @himelkishorbarua1358
    @himelkishorbarua1358 7 лет назад

    thanks a lot

  • @vampySARAH
    @vampySARAH 15 лет назад

    thats why its forbbidn in the islamic financial systemm which turned out to be the least effected by the economic crises...

  • @aakankshaa2703
    @aakankshaa2703 3 года назад

    Thanks Khan Academy ❤️

  • @Aman-jl3sy
    @Aman-jl3sy 4 года назад +1

    who is here in 2020?

  • @thybuilder
    @thybuilder 13 лет назад

    @RealFngDeal Who says those editors are not "biased" ?
    Not necessarily anything, but when it comes to proving gods existance thru the internet, there's nothing more appealing than cynicism.

  • @lucifergaming2229
    @lucifergaming2229 5 лет назад

    I have two questions, can somebody give me an idea please? suppose we have two companies in an industry i.e. 1) ABC 2) DEF. Let's say we have financial reports of both companies for 5 years. For each company i can find all the ratios for every year separately. suppose we are going to find a specific ratio i.e. liquidity ratio of both companies.
    Now my questions are: 1) How to find combined liquidity ratio for company ABC for 5 years?
    2) How we can calculate combined liquidity ratio of both (industry) companies (ABC and DEF)?

  • @wealthfundservicespvtltd954
    @wealthfundservicespvtltd954 7 лет назад

    Well done;

  • @Hellsconsort
    @Hellsconsort 12 лет назад +25

    Interest-ing!
    >_

  • @etramway
    @etramway 14 лет назад

    Well done!

  • @badabing107
    @badabing107 11 лет назад +6

    Yea I'm kind of unsure about the 1.1 also

    • @theTeamSlayer353
      @theTeamSlayer353 11 лет назад +17

      0.1 is equal to 10 percent but if we just use 0.1 you're going to get just 10 percent of 100 (which is 10) we want 100 + 10 percent of 100 so we add 1 to 0.1 to get 1.1

    • @consuelafrazier8413
      @consuelafrazier8413 4 года назад

      @@theTeamSlayer353 Thank you!

  • @Joeses15
    @Joeses15 13 лет назад

    @MrDevin666 1.1 is the same as 110% but in decimal form.

  • @jessicajumadiao3391
    @jessicajumadiao3391 7 лет назад

    but why am i taught to use i=prt instead? with that formula we would jist compute the actual money with the interest... then we wouldnt really be getting the interest unless we subtract it to the principal money, right? but if we really want to get the interest asap we should just use i=prt. then again when looking for the actual money with its interest, we can use p(1+tr).

  • @TheKoper22
    @TheKoper22 13 лет назад

    i learned this in my 7th grade math class...

    • @aaryabora5382
      @aaryabora5382 5 лет назад

      me too!! i am in 7th grade rite now anyways... so whatver

  • @fai411
    @fai411 4 года назад

    Don't forget to Grab your scientific calculator

  • @ThakvirReza
    @ThakvirReza 7 лет назад

    Is there any tutorial about Project Feasibility Test Analysis?

  • @MatiKase
    @MatiKase 13 лет назад

    This is just funny how people think that we in Estonia are not very smart xD But now I can tell you ... If you didn`t know this you are actually not very smart, And that´s the truth :)

  • @xdatgrlx
    @xdatgrlx 12 лет назад

    Actually there are numbers in everything, from the moment God made the earth. humans just discovered them way later.

  • @louleke77
    @louleke77 12 лет назад

    It's like money making kids. But money isn't alive. Money shouldn't be able to make kids... I think this is why our economic system goes wrong...

  • @lifeofgabe.0
    @lifeofgabe.0 6 месяцев назад

    what about tax on the buying

  • @neethadenny1321
    @neethadenny1321 9 лет назад

    very helpful