IceKreme Inc. makes ice cream machines for sale to ice cream parlours. The following events occurred between April $1$ and June $30,2020$:

April $10$: Received an order from Peter$$s Appliances, a wholesaler, for $12$ machines.

April $30$: Sold $18$ machines to Yuri Inc. on credit.

May $1$: The purchasing manager of Peter$$s Appliances visited IceKreme$$s factory and purchased $15$ machines on credit, instead of the $12$ machines that were previously ordered.

May $5$: Yuri Inc. paid for the machines purchased on April $30.$

May $7$: Sold $10$ machines to Cheng Ltd$.$ on credit.

May $10$: Wrote off $$13,000$ of accounts receivable that were considered uncollectible. These receivables relate to sales made prior to April $1,2020.$

May $15$: Peter$$s Appliances returned three defective machines and paid the amount due.

June $1$: Received $$80,000$ from Cheng Ltd$.$ on account.

June $30$: Recovered $$2,500$ from the receivables that were written off on May $10.$

Additional information is as follows:

IceKreme sold all machines at $$10,000$ per unit.

All of IceKreme$$s sales were on credit with terms $3/10,$ n$/30.$

IceKreme$$s records included the following items and their balances as at March $31,2020$:

Accounts receivable $ $50,000$

Allowance of doubtful accounts $($credit balance$)15,600$

Net sales $500,000$