Since the beginning of the year, the purchase manager at a department store has been recording sales data to be used to compute both weighted and non$-$weighted $4-$period moving averages to forecast sales for an upcoming month. For the weighted moving average, the employed weights are $0\mathrm{.}25,0\mathrm{.}15,0\mathrm{.}15,0\mathrm{.}45.($The lattermost weight is for the immediately preceding month.$)$ Sales data for the months of January through July are reported in the table below.

$\backslash$table$[[$Month$,$Sales$],[$January$,12],[$February$,13],[$March$,19],[$April$,22],[$May$,33],[$June$,14],[$July$,28]]$

Compute the four period moving average forecast for August.

Specify as a number with up to two decimal digits by rounding.

Compute the weighted four period moving average forecast for August.

Specify as a number with up to two decimal digits by rounding.