Support » Plugin: Calculated Fields Form » Can't make mathematical form work

  • Resolved OliverEggertsen



    I am having a problem with making my mathematical formula “work”.

    I am making a formula of a simple future value calculation.

    The formula is: Present value * (1 + interest/100)^number of time periods.

    I have entered this formula in my calculated field:

    Fieldname 4 is present value
    Fieldname 2 is interest
    Fieldname 3 is number of time periods

    If i for example enter 100 in present value, 2 in interest, and 20 in time periods i get a huge number compared to the real answer which should be 148.59

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  • Plugin Author codepeople



    Please, replaces the fields names, by the initial numbers in your current equation:

    If the present value is 100, and the interes is 2, and the number of time periods is 20, your equation would be:

    PREC(POW(100*(1+2/100),20),2) = PREC(POW(102,20),2)


    102^20 = 1.4859473959783544e+40

    PREC(POW(1.4859473959783544e+40),2) = 1.4859473959783544e+40

    So, if you’re obtaining a huge number as equation’s result with the initial values you sent me, the equation is working fine.

    Now, if you modify the equation like follow:


    you will get the result you want 😉

    Remember, you should create the equations maintaining the priorities between the operations of the Mathematical world.

    Best regards.

    Thanks 🙂

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