Current Attempt in Progress Skysong manufactures and sells computers for $3,100 each, with a two-year parts and labour warranty. Based on prior experience, the company expects, on average, to incur warranty costs equal to 5% of sales. The business reports the following sales and warranty cost information: Sales (units) Actual Warranty Costs 2022 640 $28,250 2023 460 49,500 2024 875 54,600