Dittmar warrants its products for one year. Dittmar estimates the cost of repairs for the warranty period to be 5% of sales. Assume that sales were $188, 500 for March. Journalize the entry to record the estimated product warranty expense for March. Use Smart Entry when selection lists are not available. In April, a customer returned an item under warranty, and the company replaced a defective part with another part that cost $280. Dittmar records spare parts in Supplies. Journalize the entry to record the warranty cost for this return in April. Use Smart Entry when selection lists are not available