Use Excel to Calculate MAD, MSE, RMSE & MAPE
To optimize your forecast, whether moving average, exponential smoothing or another form of a forecast, you need to calculate and evaluate MAD, MSE, RMSE, and MAPE. With Excel 2016 or later, this is easy to do. The Mean Absolute Deviation (MAD) is the sum of absolute differences between the actual value and the forecast divided …