Not sure why I'm not getting the total in the variable costs correctly.

Here's what I did in the spread sheet

\begin{tabular}{|c|c|c|c|c|} \hline & Large & Medium & Small & Total \\ \hline Unit Produced & 2800 & 2800 & 2800 & =B2+C2+D2 \\ \hline Revenue & =B2324 & =C2132 & =D2282 & =B3+C3+D3 \\ \hline Variable Costs & =B2255 & =C2108 & =D2248 & =B4+C4+D4 \\ \hline Contribution Margin & =B3B4 & =C3C4 & =D3+D4 & =B5+C5+D5 \\ \hline Fixed Costs & & & & 160000 \\ \hline Operating Income & & & & =E5E6 \\ \hline \end{tabular} Youngstown Glass Company manufactures three types of safety plate glass: large, medium, and small. All three products have high demand. Thus, Youngstown Glass is able to sell all the safety pressurized heat treatment. The autoclave is a production bottleneck. Total fixed costs are $160,000 for the company as a whole. In addition, the following information is available about the thr