Exercise 13-22 (Algo) Variable versus absorption costing LO 13-8 Colorado Business Tools manufactures calculators. Costs incurred in making 9,560 calculators in February included $29,350 of fixed manufacturing overhead. The total absorption cost per calculator was $9.95. Required: a. Calculate the variable cost per calculator. b. The ending inventory of calculators was 710 units higher at the end of the month than at the beginning of the month. By how much and in what direction (higher or lower) would operating income for the month of February be different under variable costing than under absorption costing? c. Express the calculator cost in a cost formula. Complete this question by entering your answers in the tabs below. Calculate the variable cost per calculator. Note: Do not round intermediate calculations. Round your answer to 2 decimal places. Express the calculator cost in a cost formula. Note: Do not round intermediate calculations. Round "Variable cost" to 2 decimal places. The ending inventory of calculators was 710 units higher at the end of the month than at the beginning of the month. By how much and in what direction (higher or lower) would operating income for the month of February be different under variable costing than under absorption costing? Note: Do not round intermediate calculations. Round final answer to nearest whole dollar. Operating income under variable costing will be