How to calculate the APR on a credit card

I have a Virgin credit card and knowhere on the statement does it state the annual precentage rate. Does anyone know the formula for calculating?
Currently the monthly interest rate is 2.2071%
I am just trying to do a more accurate SOA but need the annual APR for my calculations.
Many thanks in advance.
Total debt December 2010 = [STRIKE]£47,365.08[/STRIKE] Total debt January 5th 2011 = [STRIKE]£47,080.89[/STRIKE]
Total debt February 5th [STRIKE]£46,431.12 [/STRIKE] Total debt 5th March 2011 = [STRIKE]£45,865.41 [/STRIKE] Total debt 5th April 2011 = [STRIKE]£45526.29 [/STRIKE]Total debt 5th May 2011 = £44764.56[/STRIKE]Target debt for Dec 2011 = £40,000.00

Comments

  • CLAPTON
    CLAPTON Posts: 41,865 Forumite
    10,000 Posts Combo Breaker
    its about 29.95% apr

    the formula is if M = monthly rate then

    APR = (1+M)^12 - 1

    multiplying by 13 gives an approximate answer
  • No wonder they do not state their apr on the statement. I did not realize it was so high. Many thanks for the information, much appreciated.
    Total debt December 2010 = [STRIKE]£47,365.08[/STRIKE] Total debt January 5th 2011 = [STRIKE]£47,080.89[/STRIKE]
    Total debt February 5th [STRIKE]£46,431.12 [/STRIKE] Total debt 5th March 2011 = [STRIKE]£45,865.41 [/STRIKE] Total debt 5th April 2011 = [STRIKE]£45526.29 [/STRIKE]Total debt 5th May 2011 = £44764.56[/STRIKE]Target debt for Dec 2011 = £40,000.00
  • For future reference, there's a converter here.
    Are you for real? - Glass Half Empty??
    :coffee:
  • Consumerist
    Consumerist Posts: 6,311 Forumite
    Part of the Furniture 1,000 Posts Name Dropper
    edited 29 December 2010 at 12:04AM
    CLAPTON wrote: »
    . . . the formula is if M = monthly rate then APR = (1+M)^12 - 1

    Just to clarify the formula by CLAPTON, M = Monthly Rate (%) / 100.

    The % APR will be 100 times the result given by the formula.

    So at 2.2071% per month,

    APR/100 = 1.022071^12 - 1 = 0.29947..... to give an APR of 29.95% to 2 decimal places.
    >:)Warning: In the kingdom of the blind, the one-eyed man is king.
  • CLAPTON
    CLAPTON Posts: 41,865 Forumite
    10,000 Posts Combo Breaker
    edited 29 December 2010 at 12:28AM
    Just to clarify the formula by CLAPTON, M = Monthly Rate (%) / 100.

    The % APR will be 100 times the result given by the formula.

    So at 2.2071% per month,

    APR/100 = 1.022071^12 - 1 = 0.29947..... to give an APR of 29.95% to 2 decimal places.

    thank you but it all depends upon the what you mean by the values

    so, in fact,
    2.2071% means 0.22071
    so if you divide by 100 you get 0.002071 which doesn't give the right answer

    but I'm sure we agree really
  • CLAPTON wrote: »
    . . . but I'm sure we agree really

    Quite so. It was only supposed to be a clarification (with example), not a contradiction.
    >:)Warning: In the kingdom of the blind, the one-eyed man is king.
  • So a monthly rate of 3.5% is equals to almost 51% APR?
  • CLAPTON
    CLAPTON Posts: 41,865 Forumite
    10,000 Posts Combo Breaker
    jaygomez wrote: »
    So a monthly rate of 3.5% is equals to almost 51% APR?


    yes indeed (doubtless why they prefer to highlight the monthly figure)
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