The conversion cost is the cost of 100% complete work on the 250,000 units sold, plus 25% complete work on 20,000 units in the inventory. A 25% complete work on 20,000 units is equivalent (for calculation purposes) to 100% complete work on 5,000 units.
The conversion cost on the 250,000 units that were sold = 16,320,000 250,000/255,000 = $16,000,000
Cost incurred from the prior department = $49,221,000 sold units/total units
= $49,221,000 250,000/270,000 = $45,575,000
Cost of goods sold for the year = $16,000,000 + $45,575,000 = $61,575,000.
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2. Does Thad Kostowski want the estimated percentage completion to be increased or decreased? Explain why.
Thad wants the estimated percentage completion on the ending inventory to be increased over 25% so that the cost of the goods sold will appear to be lower that reality and will be mistaken as a cost of completion. This will consequently bump up the profit estimates to the target profits, as Thad wants.
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3. What percentage completion figure would result in increasing the reported net operating income by $62,500 over the net operating income that would be reported in the 25% figure we used?
According to the above calculations, the 25% complete work on 20,000 units in the inventory cost $16,320,000 - $16,000,000 = $320,000. So each 1% increase in completion will cost 1/25 $320,000 = $12,800. So to get an increase in the reported net operating income by $62,500 over the net operating