Windsor company sells a machine for $7,220 with a 12-month warranty agreement that requires the company to replace all defective parts and to provide the repair labor at no cost to the customers. with sales being made evenly throughout the year, the company sells 740 machines in 2020 (warranty expense is incurred half in 2020 and half in 2021). as a result of product testing, the company estimates that the warranty cost is $446 per machine ($202 parts and $244 labor). use "inventory" account to record the warranty expense.