Can someone explain to me how to find the proportion (decimal)? Thank You!

The Ride - On-Water Company (ROW) produces a line of non-motorized boats. ROW uses a normal-costing system and allocates manufacturing overhead using direct manulacturing labor cost. The following data are for 2020: (Click the icon to view the data.) Requirement 1. Calculate the manufacturing overhead allocation rate. Identify the formula and calculate the manufacturing overhead allocation rate. (Enter the result as a whole number.) Requirement 2. Compute the amount of under-or overallocated manufacturing overhead. Identify the formula and calculate the under-or manufacturing overallocated overhead. (Use parentheses or a minus sign to report overhead overall Requirement 3. Calculate the ending balances in work in process, finished goods and cost of goods sold if under- or overallocated manufacturing ov prorated based on the overhead allocated in 2020 in the ending balances (before proration) in each of the three accounts. (a.) Calculate the ending balances in work in process, finished goods and cost of goods sold if under- or overallocated manufacturing overhead is writ (b.) Begin by identifying the formula and calculating the adjustment to each acoount assuming under-or overallocated manufacturing overhead is prori adjustments to be subtracted.)