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 145 units @ $ 7.00 = $ 1,015 jan. 10 sales 105 units @ $ 16.00 jan. 20 purchase 70 units @ $ 6.00 = 420 jan. 25 sales 85 units @ $ 16.00 jan. 30 purchase 190 units @ $ 5.50 = 1,045 totals 405 units $ 2,480 190 units the company uses a perpetual inventory system. for specific identification, ending inventory consists of 215 units, where 190 are from the january 30 purchase, 5 are from the january 20 purchase, and 20 are from beginning inventory. exercise 5-4 perpetual: income effects of inventory methods lo a1 required: 1. complete comparative income statements for the month of january for laker company for the four inventory methods. assume expenses are $1,300, and that the applicable income tax rate is 40%. (round your intermediate calculations to 2 decimal places.)