Problem $2-21($Algo$)$

A retail store had sales of $$44,000$ in April and $$55,140$ in May. The store employs eight full$-$time workers who work a April, the store also had six part$-$time workers at $11$ hours per week, and in May the store had seven part$-$timers at $16$ ho $($assume four weeks in each month$).$

Using sales dollars as the measure of output, what is the percentage change in productivity $($output in dollars per labor to May?

Note: Round your intermediate calculations and final answer to $2$ decimal places.

Change in productivity