Additional Problem $03-04($Algo$)$

The table below shows actual and forecasted numbers of accounts serviced by a company. Compute MAD, MSE, and MAPE for the following data, showing actual and forecasted numbers of accounts serviced.

Note: Enter whole number values in the table below for Error, IErrorl, and Error$^2.$ Round the $(|$Error$|/$Actual$)100$ to three decimals. Enter $0$ 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.

$\backslash$table$[[$Period$,$Actual,Forecast,A$-$F$($Error$),|$Error$|,$Error ${?}^2,$ Error$//$Actual$)$