collective judgment for the $4$ months $($March$,$ April, May, and June$)$:

$\backslash$table$[[$Month$,$Jul,Aug,Sep,Oct,Nov,Dec,Jan,Feb,Mar,Apr,May,Jun$],[$Unit Sales,$98,93,94,112,120,118,95,85,101,96,88,108],[$Management$\text{'}$s Forecast,$-,-,-,-,-,-,-,-,122,115,108,110]]$

a$)$ MAD for the forecast developed by the management's technique $=15\mathrm{.}50$ sales $($round your response to two decimal places$).$

MAPE for the forecast developed by the management's technique $=\%($round your response to two decimal places$).$