Crazy Cool Colas Prepares Specialty-Flavored Sodas for Large Grocery Chains

Crazy Cool Colas prepares specialty-flavored sodas for large grocery chains and bakeries. The company employs a process-costing system. Most of the basic ingredients, labeled Material Group A, are added at the beginning of the mixing process. However, to give the sodas the special "sizzle"
they are named for, the company adds a special ingredient when units are 80% complete, which is labeled Material Group B. Information regarding the mixing department in a recent month reveals the following:
Beginning inventory: 2,000 Cases (60% complete for conversion)
Cases started: 18,000
Cases finished: 16,000
The ending inventory is 90% complete as to conversion costs Cost information:
Beginning Work-in-Process: $21,600 consisting of $5,200 of Material Group A, $0 of Material Group B and $16,400 of conversion costs
Added during the month: $48,000 of Material Group A, $4,500 of Material Group B and $162,000 of conversion costs
Required: a) Prepare a cost report using the weighted-average method. Round all numbers to four decimal points.
b) During the annual audit, the company's auditors discover that management's estimates of percentage of completion for the ending inventory were too high. Discuss how this error will affect the company's ending inventory and profits for the period.