Sales of quilt covers at Bud Banis's discount department store in Carbondale over the past year are shown below. Management prepared a forecast using a combination of exponential smoothing and its 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,$98,97,94,108,126,118,92,85,102,98,88,108],[$Management$\text{'}$s Forecast,$-,-,-,-,-,-,-,-,125,116,112,110]]$

a$)$ MAD for the forecast developed by the management's technique $=$ 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$).$

b$)$ Using the Naive Method, the forecast for period March through June is $($round your response to two decimal places$)$:

$\backslash$table$[[$Month$,$Jul,Aug,Sep,Oct,Nov,Dec,Jan,Feb,Mar,Apr,May,Jun$],[$Unit Sales,$98,97,94,108,126,118,92,85,102,98,88,108],[$Naive Forecast,$-,-,-,-,-,-,-,-,,,,$