Exercises 9-18 VARIABLE AND ABSORPTION COSTING, EXPLAINING OPERATING INCOME DIFFERENCES. 4KPlay Inc. manufactures and sells 50-inch television sets and uses standard costing. Actual data relating to January. February. and March of 2018 are LO 3 1. a. Operating income, January $510,000 January February March Unit data: Beginning inventory 300 300 Production 1,000 800 1.250 Sales 700 800 1,500 Variable costs Manufacturing cost per unit $ 900 900 $ 900 produced Operating (marketing) cost per 600 BOO 600 unit sold Fixed costs: Manufacturing costs $400,000 $400,000 $400,000 Operating (marketing) costs $140,000 $140,000 $140,000 The selling price per unit is $3,000. Required 1. Present statements of comprehensive income for January. February, and March of 2018 under (a) variable costing and (b) absorption costing. 2. Explain the difference in operating income for January. February, and March under variable costing and absorption costing