Relevant Range and Fixed and Variable Costs MiniBoxx Gaming Inc. manufactures components for computer games within a relevant range of 125,000 to 250,000 components per year. Within this range, the following partially completed manufacturing cost schedule has been prepared: Line Item Description Amount Amount Amount Components produced 125,000 187,500 250,000 Total costs: Total variable costs $150,000 (d) (j) Total fixed costs 150,000 (e) (k) Total costs $300,000 (f) (l) Cost per unit: Variable