SOLUTION: Margin calculation (Revenue-Expense)/Revenue = Margin or (x-y)/x=Z. In my case, I know the desired Margin (z) and know the Expense (y). I would like to plug in various values fo

Question 202139: Margin calculation (Revenue-Expense)/Revenue = Margin or (x-y)/x=Z. In my case, I know the desired Margin (z) and know the Expense (y). I would like to plug in various values for (z) and have it calculate the revenue required, solve for X.
Thanks.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Margin calculation (Revenue-Expense)/Revenue = Margin or (x-y)/x=Z. In my case, I know the desired Margin (z) and know the Expense (y). I would like to plug in various values for (z) and have it calculate the revenue required, solve for X.
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Multiply both sides by x to get:
x-y = zx
Get the x-terms on one side:
x-zx = y
Factor out the "x":
x(1-z) = y
Solve for "x":
x = y/(1-z)
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Cheers,
Stan H.
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