Assume that a retailers beginning inventory and purchases of a popular item during January included (1) 500 units at $9.00 in beginning inventory on January 1, (2) 650 units at $10.00 purchased on January 8, and (3) 950 units at $11.00 purchased on January 29. The company sold 550 units on January 12 and 750 units on January 30.

Required:

1. Calculate the cost of goods sold for the month of January under (a) FIFO (periodic calculation), (b) FIFO (perpetual calculation), (c) LIFO (periodic calculation), and (d) LIFO (perpetual calculation).