Please show steps, calculations and formulas

Exercise 21-6 Relevant range and fixed and variable costs. Fortress Inc. manufactures pistons for custom motorcycles within a relevant range of 300,000 to 375.000 pistons per year. Within this range, the following partially completed manufacturing cost schedule has been prepared: Number of Pistons per year 300,000 360,000 375,000 Components produced: $75,000 90,000 $165,000 Total costs: Total variable costs Total fixed costs Total costs Cost per unit: Variable cost per unit Fixed cost per unit Total cost per unit STE 628 as eso (a) Complete the preceding cost schedule, identifying each cost by the appropriate letter (a) through (o). Remember, you will not receive any credit for only submitting the answers, so show all your calculations in order to receive full credit (organized). (Ctrl)