Barrack Inc. manufactures laser printers within a relevant range of production of 50,000 to 70,000 printers per year. The following partially completed manufacturing cost schedule has been prepared:

Number of Printers Produced
70,00090,000100,000
Total costs:
Total variable costs$350,000(d)(j)
Total fixed costs 630,000(e)(k)
Total costs$980,000(f)(l)
Cost per unit:
Variable cost per unit(a)(g)(m)
Fixed cost per unit(b)(h)(n)
Total cost per unit(c)(i)(o)

Complete the preceding cost schedule, identifying each cost by the appropriate letter (a) through (o).