When goods available for sale exceed sales, firms can manipulate income even when they use specific identification. Cypres, a discounter of consumer electronics, has 300 identical computers available for sale during December. It acquired these computers as follows: 100 in June for \(\$ 300\) each, 100 in August for \(\$ 400\) each, and 100 in November for \(\$ 350\) each. Assume that sales for December are 200 units at \(\$ 600\) each.

a. Compute gross margin for December assuming FIFO.

b. Compute gross margin for December assuming specific identification of computers sold to minimize reported income for tax purposes.

c. Compute gross margin for December assuming specific identification of computers sold to maximize reported income for the purpose of increasing the store manager's profit-sharing bonus for the year.