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The table below shows actual and forecasted numbers of accounts serviced by a company. Compute MAD, MSE, and MAPE following data, showing actual and forecasted numbers of accounts serviced. $($Enter whole number values in the table belo Error, $|$Errorl$,$ and Error$^2.$ Round the $($IErrorl$/$Actual$)100$ to three decimals. Enter $0$ where necessary, do not leave any $c$ 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$)100$