"A local university is considering changes to its class structure in an effort to increase professor productivity. The old schedule had each professor teaching $5$ classes per week, with each class meeting an hour per day on Monday, Wednesday, and Friday. Each class contained $20$ students.

The new schedule has each professor teaching only $3$ classes, but each class meets daily $($Mon$.-$Fri.$)$ for an hour. New classes contain $50$ students."

Complete calculation inside highlighted question cell

$1.$ Calculate the labor productivity for the initial situation $($students$/$hour$).[$Blank$1]$

$1\mathrm{.}333333333$ students$/$hour

$2.$ Calculate the labor productivity for the new schedule $($students$/$hour$).[$Blank$2]$

$3\mathrm{.}333333333$ students$/$hour

$3.$ What is the change in productivity? $[$Blank$3]$

$150\%$