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Calculations

For those of you without laptop computers or programmable calculators, the following might be of use.

  1. Annual Percentage Rate


    e.g.

    What is the APR on a loan where interest is charged at 2% per month?



    APR = 26.824%

  2. Percentage change in value


    e.g.

    A painting purchased for £430 is now worth £520. What is the percentage change in value?




    Percentage change = 20.93%

  3. Simple Interest


    e.g.

    What is the total of interest earned if £1000 is invested for 4 years at 6% ?



    Interest = £240

  4. Compound Interest

    e.g.

    What is the total of interest earned if £1000 is invested for 4 years at 6% per annum compound?



    A = £1262.48

  5. Regular Investment


    e.g.

    If £1000 is invested each year for 4 years at 6% per annum compound, what will be the final value?



    A = £4633.33

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