The following information applies to the questions displayed below.] Laker Company reported the following January purchases and sales data for its only product. Date Activities Units Acquired at Cost Units sold at Retail Jan. 1 Beginning inventory 140 units @ $ 6.00 = $ 840 Jan. 10 Sales 100 units @ $ 15 Jan. 20 Purchase 60 units @ $ 5.00 = 300 Jan. 25 Sales 80 units @ $ 15 Jan. 30 Purchase 180 units @ $ 4.50 = 810 Totals 380 units $ 1,950 180 units Required: 1. Complete comparative income statements for the month of January for Laker Company for the four inventory methods. Assume expenses are $1,250, and that the applicable income tax rate is 40%. (Round your average cost per unit to 2 decimal places.)