Botch Corp. sold 5,500 units of its product at $45 per unit in year 2011 and incurred operating expenses of $6 per unit in selling the units. It began the year with 600 units in inventory and made successive purchases of its product as follows. Jan. 1 Beginning inventory 600 units @ $18 per unit Feb. 20 Purchase 1,500 units @ $19 per unit May 16 Purchase 700 units @ $20 per unit Oct. 3 Purchase 400 units @ $21 per unit Dec. 11 Purchase 3,300 units @ $22 per unit Total 6,500 units Required: 1. Prepare comparative income statements for the three inventory costing methods of FIFO, LIFO, and weighted average which includes detailed cost of goods sold section as part of each statement. The company uses a periodic inventory system, and its income tax rate is 30%