Problem $3$

Compute the multifactor productivity measure for an eight$-$hour day in which the total usable output was $2500$ units, produced by four workers who used a total of $400$ pounds of materials. Workers have an hourly wage of $$25,$ and material cost is $$1$ per pound. Overhead is $1\mathrm{.}6$ times labor cost. Determine the multifactor productivity.$($Output per $ of input$)$