On December $1,$ Sheridan Company has three DVD players left in stock. All are identical, all are priced to sell at $$81.$ One of the three DVD players left in stock, with serial #$1012,$ was purchased on June $1$ at a cost of $$50.$ Another, with serial #$1045,$ was purchased on November $1$ for $$46.$ The last player, serial #$1056,$ was purchased on November $30$ for $$41.$

$($a$)$

Calculate the cost of goods sold using the FIFO periodic inventory method, assuming that two of the three players were sold by the end of December, Sheridan Company' year$-$end.

Cost of goods sold $

$($b$)$

If Sheridan Company used the specific identification method instead of the FIFO method, how might it alter its earnings by "selectively choosing" which particular players to sell to the two customers? What would Sheridan's cost of goods sold be if the company wished to minimize earnings? Maximize earnings?

Cost of goods sold would be $

if it wished to minimize the earnings.

Cost of goods sold would be $

if it wished to maximize the earnings.