Magic mirror Company incurred the costs listed below during August to manufacture mirrors. The company uses a JIT inventory system. \begin{tabular}{|l|r|} \hline Glass resin & $6,780 \\ \hline Factory machine blades (replaced once each month) & $820 \\ \hline Cost to ship to customers & $780 \\ \hline Production supervisor's salary & $3,260 \\ \hline Product advertising costs & $1,120 \\ \hline Sales supervisor's salary & $2,590 \\ \hline Production labor ( $29 per hour for the first 40 hours and additional 40% in the rate in & 44 \\ excess of 40 hours) & hours \\ \hline Do not enter dollar signs or commas in the input boxes. \\ \hline Round all answers to 2 decimal places. \end{tabular} a) Calculate total product costs assuming 8,270 mirrors are produced. Total Product Costs: \$