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I would like to calculate a weighted MAPE but first I can't get the total to work, and secondly no clue how to solve the weighted part.
Currently I have two measures, [Current Forecast] and [Actual]. The forecast comparison has three dimensions, Product Group, Country and Month.
This version of MAPE gives me a total line which is just based on the totals per column, but I want to capture acutal MAPE per line and then have the average per product group as the total:
This is what my table looks like.
MAPE2 should be ~129% and if I have weighted MAPE2 based on Forecast (Acutal where forecast = 0 ), it should be 199%
Hi,
have you considerd that 1 is the same as 100%, so if you have an actual of 0, the value one would then be translated to 100%. The 12.28% for instance would be 0.1228.
Hope this helps you!
Hi, Yes, if the actual = 0 while we have a forecast, or if the forecast is 0 and the acutal is larger than 0, then it it is a 100% error