After assembly, the computers are moved to a separate burn$-$in area that is separate from the assembly line. Here computers are put in racks for a $24-$hour, $25\backslash$deg C $$burn$-$in$$ of the circuit components. After burn$-$in$,$ the computer is tested again, software is installed, and the finished notebook computer is packaged and placed on pallets for shipment to Toshiba distribution centers around the world.

Tweaking the Initial Assembly$-$Line Design

From past experience, Toshihiro has found that the initial assembly$-$line design supplied by the engineers often needs to be tweaked. Consider the following questions that Toshihiro is considering:

When the assembly line designed by the engineers is running at maximum capacity, what is the efficiency of the line relative to its use of labor? Assume that the supporter is not included in efficiency calculations. $($Round your answer to $2$ decimal places.$)$