Please, i need to know the formulas needed to get the answers. not just the answers (for example b1-b2)

\begin{tabular}{|c|l|r|r|} \hline 3 & Data & & \\ \hline 4 & Manufacturing overhead & $500,000 & \\ \hline 5 & Selling and administrative overhead & $300,000 & \\ \hline 6 & & & \\ \hline 7 & & Assembling Units & Processing Orders \\ \hline 8 & Manufacturing overhead & 50% & 35% \\ \hline 9 & Selling and administrative overhead & 10% & 45% \\ \hline 10 & Total activity & 1,000 & 250 \\ \hline 11 & & units & orders \\ \hline 12 & & & \\ \hline 13 & OfficeMart orders: & & \\ \hline 14 & Customers & 1 & customer \\ \hline 15 & Orders & 4 & orders \\ \hline 16 & Number of filing cabinets ordered in total & 80 & units \\ \hline 17 & Selling price & $595 & \\ \hline 18 & Direct materials & $180 & \\ \hline 19 & Direct labor & $50 & \\ \hline 20 & & & \end{tabular} 21 Enter a formula into each of the cells marked with a ? below 22 Review Problem: Activity-Based Costing 24 Perform the first stage allocations \begin{tabular}{|l|l|r|r|r|r|r|} \hline 25 & Assembling Units & Processing Orders & Supporting Customers & Other & Total \\ \hline 26 & Manufacturing overhead & ? & ? & ? & ? & ? \\ \hline 27 & Sellinq and administrative overhead & ? & ? & ? & ? & ? \\ \hline \end{tabular} 51 52 Determine the product margin for the OfficeMart orders under a traditional cost system 53 Manufacturing overhead