Required Using the weighted$-$average method, calculate the following:

a$.$ Costs per equivalent unit.

b$.$ Cost of goods completed and transferred out.

c$.$ Costs remaining in the Work$-$in$-$Process Inventory account.

Assume that you are the company's controller. The production department's February

equivalent unit cost is higher than expected. If the manager of the first department asks you

to do him a favor by increasing the ending inventory completion percentage from $40$ to $60\%$

to lower the unit costs, what should you do$?$ How much would unit cost be affected by this request?

Please use an excel format and show steps