Betancourt Company sells automatic can openers under a 75-day warranty for defective merchandise. Based on past experience, Betancourt estimates that 3% of the units sold will become defective during the warranty period. Management estimates that the average cost of replacing or repairing a defective unit is $15. The units sold and units defective that occurred during the last 2 months of 2022 are as follows. Month Units Sold Units Defective Prior to December 31 November 30,000 600 December 32,000 400