Additional Problem 03-04 (Algo) The table below shows actual and forecasted nubmers of accounts serviced by a company. Compute MAD, MSE, and MAPE for the following data, showing actual and forecasted numbers of accounts serviced. (Enter whole number values in the table below for Error, IErrorl, and Error^2. Round the IErrorl/Actual to three decimals. Enter O where necessary, do not leave any cells blank. Negative values should be indicated with a minus sign, i.e. -2. Round MAD, MSE and MAPE to 3 decimal places.) Period Actual Forecast A-F(Error) Error Error? (Error/Actual) x 100 1 420 412 412 416 3 416 422 424 426 5 430 432 6 434 436 7 442 442 8 450 446 N 4 5 8 MAD MSE MAPE