Hello All,
New to this site, I was wondering if there is a way to reverse this calculation with a single formula;
100%=$P1 15%=$P2
50 = A
(A*$P1) = B
((A+B)*$P2) = C
(A+B+C)= D

Is there a way to perform the reverse calculation? Using number $D and The Percentages $P1 and $P2 is there a way to find out what A would be?

Please advise.
Thank you in advance.