How do I write a formula to calculate % of a benchmark? Example for a benchmark of $100. If this month my cost is $107 (+7%) and next it is $98 (-2%). How do I express the formula?
Take your monthly cost and subtract from it the benchmark. In the first example, this would be 107 - 100 = 7. Then divide by the benchmark of 100 = 0.07 = 7%. What else do you need it to do?
Subtract your benchmark from your monthly cost and then divide by the benchmark. For instance, 107 - 100 = 7 / 100 = 0.07 = 7%. What else do you need it to do?
Thanks, I know how to do the math. I am new to Excel and was wanting to know how to write a formula so every time I enter new data, it will tell me how far I am off my benchmark.
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