Windsor, Inc. began the year with 12 units of marine floats at a cost of $ 10 each. During the year, it made the following purchases May 5, 29 unit at $ 15: July 16, 15 units at $ 21; and December 7, 20 units at $23. Assume there are 24 units on hand at the end of the period. Windsor uses the periodic approach. (a) * Your answer is incorrect Determine the cost of goods sold under FIFO. FIFO Cost of good sold 910