Hello. I'm reading a financial tutorial for powerpivot dax. They have revenues that are negatives and expenses that are positive. They handle this issue with the formula below. I don't have this issue, my values are mostly positive. However, there are a few expense items that can sometimes be either negative or positive. How can I calculate a proper year over year % change?
For example, in my picture. The calculation is Yoy= current year-prior year. This calculation works correctly and makes sense. The year over year percentage change= YoY change/prior year. This calculation does not always make sense because the prior year/current year could be negative/negative, positive/negative, negative/positive. How can I write a formula to address this issue?
IF(
CONTAINS(Accounts, Accounts[Class], "Net Revenue"), -([Actual $]-[Prior $]),
([Actual $]-[Prior $])
