>

>LOCAL nFinalValue,;
>nvalue
>
>nValue = 10
>
>
>  m.nFinalValue = 1 + (( 150 - m.nValue ) * 2.71 )  &&& gives 380.4
>
>*-- Now i must Find nvalue 
>nValue = ? ( to find 10 )
>
>

>
>Thank in advance
>
>
>bernhart

You need to apply the same operations in reverse order, though you may run into rounding problems.