Excel formula help

Discussion in 'Off-Topic Discussions' started by eilla05, Jul 1, 2010.

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  1. eilla05

    eilla05 New Member

    I am about to poke my eyes out trying to get a formula to work! Does anyone know of a good site that has a "cheat sheet" for formulas? Right now I am trying to do an IF formula and I think I need to go to bed because I can't get it right... For the record before this class I knew basic excel :)

    The formula I am trying to write ( and maybe im stupid because im tired or have been working on this stuff for 5 hours) is



    If the difference between 29,960 and 27968 is 30% or less return value yes if more than 30% return value no Obviously its 8% difference but I cant write the formula right!!!

    I am sure its so simple and its just because my eyes hurt that I cant get it right.. Any help?
     
  2. james_lankford

    james_lankford New Member

    I would think this way

    cell E2 contains 29,960
    cell F2 contains 27968

    cell G2 contains =IF(((E2-F2)/E2)<=0.3,TRUE,FALSE)

    but that can't be right because
    E2 - F2 = 1992
    29,960 - 27968 = 1992

    then divide that by E2
    1992 / 29960 = 0.066488652

    which is 6.65 %

    not 8 %

    so I don't know
     
  3. perrymk

    perrymk Member

    Where did you get 8% from?

    Are you asking if the difference is more than 30% of the larger number or 30% of the lesser number? The difference will be slight but it is still a difference.
     
  4. Randell1234

    Randell1234 Moderator


    Try these sites-
    Excel Tips, Excel Tutorials and Excel Techniques

    Excel Charts and Graphs Tutorial - How to Make and Create, MS 2007
     
  5. eilla05

    eilla05 New Member

    note to self: Do not write threads when your tired and your eye balls hurt!

    The correct numbers are :

    29280-26968=2313/29280=0.078 rounded up to 8%
     
  6. eilla05

    eilla05 New Member

    Here are the instructions:

    Insert an IF function that evaluates the difference between the total amount you would end up paying if you took the loan that resulted in the lowest monthly payment and the actual purchase price of the car. Return the value YES if the difference is 30% or less; return the value NO if the difference is more than 30%.

    Financed amount is 29280
    Actual purchased amount is 26968
    The difference is about 8% which would mean the value should return yes but it returns no!
     
  7. eilla05

    eilla05 New Member

  8. ax8l

    ax8l New Member

    I dont know if you found the solution but here it is:
    if B1=29280 and C1=26968 then
    Code:
    =IF(ROUND(((B1-C1)/B1)*100,0)<30,"YES","NO")
    
    Btw, this rounds up the percentage so if it is 7,7238812% then it will be rounded up to 8%!
    If you want me to explain what i did just leave a reply
     
    Last edited by a moderator: Jul 1, 2010
  9. eilla05

    eilla05 New Member

    I had not found the solution....

    :D I think I am in love with you....im kidding! Yes please explain as that is the only way to learn! BTW it worked!
     
  10. james_lankford

    james_lankford New Member

    I say you should divide by C1
    not B1

    if B1 = 100 (this is the loan price with interest)
    and C1 = 30 (this is the actual cash purchase price)
    then what % do you expect to see ?

    the price difference is 70 dollars

    so if you say 70 / B1 (which is 70/100) you get 70 %
    but if you say 70 / C1 (which is 70/30) you get 233 %

    dividing by C1 tells you that you end up paying 233 % more if you take out a loan than you do if you pay with cash price
     

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