EZ Equipment Co. sold $870,000 of equipment during March under a one-year warranty. The cost to repair

Question:

EZ Equipment Co. sold $870,000 of equipment during March under a one-year warranty. The cost to repair defects under the warranty is estimated at 4.5% of the sales price. On October 4, a customer required a $420 part replacement, plus $100 of labor under the warranty.
Provide the journal entry for
(a) The estimated warranty expense on March 31
(b) The October 4 warranty work.