Maias Bike Shop uses the perpetual inventory system and had the following transactions:

May 1 Purchased $5,000 of inventory. Credit terms 2/10, n/30.

May 3 Sold products to a customer on credit for $800, terms 2/10, n/30. Our cost was $350

May 4 Returned $200 of defective purchases from May 1

May 8 Customer from May 3 returned products to us we sold to them for $100 with a cost of $55

May 11 Paid the amount due on May 1 purchase.

May 13 Customer from May 3 paid us in full taking the discount

Prepare the required journal entries that Maias Bike Shop must make to record these transactions.