The following information pertains to Stanley Company for 2016:

Beginning inventory ..... 90 units @ $15

Units purchased ......320 units @ $19

Ending inventory consisted of 40 units. Stanley sold 370 units at $30 each. All purchases and sales were made with cash.

Required

a. Compute the gross margin for Stanley Company using the following cost flow assumptions:

(1) FIFO,

(2) LIFO, and

(3) Weighted average.

b. What is the dollar amount of difference in net income between using FIFO versus LIFO?

c. Determine the cash flow from operating activities, using each of the three cost flow assumptions listed in Requirement a. Ignore the effect of income taxes. Explain why these cash flows have no differences.