Colorado Business Tools, manufactures calculators. Costs incurred in making 9,500 calculators in February included 29,450 of fixed manufacturing overhead. The total absorption cost per calculator was $10.25.
a. Calculate the variable cost per calculator.
b. The ending inventory of pocket calculators was 750 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 pocket calculator cost in a cost formula.