A company began the accounting period with inventory of 3,000 units at $30 each. During the period, the company purchased an additional 5,000 units at $36 each and sold 4,600. Assume the use of periodic inventory procedure, the cost of ending inventory using weighted-average is:
a. 114,750, b. 157,600, c. 122,400, d. 109,650, e. none of the above