Compute the average hourly cost to a contractor working in Michigan of an operator doing Excavation work $($Grading of Land, NOC$)$ who works five $10-$hour days $($M$-$F$)$ and $8$ hours on Saturday. Any hours over $40$ per week are paid at time and a half. The following information applies:

$\backslash$table$[[$Wage Rate,$$28\mathrm{.}58$