QP Corporated sold 5,460 units of its product at $45.40 per unit during the year and incurred operating expenses of $6.40 per unit in selling the units. It began the year with 640 units in inventory and made successive purchases of its product as follows. Required: 1. Prepare comparative year-end income statements for the three inventory costing methods of FIFO, LIFO, and weighted average which includes a detailed cost of goods sold section as part of each statement. The company uses a periodic inventory system. (Round your average cost per unit to 2 decimal places and round your final answers to nearest whole dollar amount.)