Willys Wheels had the following transactions during the first eleven days of May:

1 Purchased 33 sets of tires from supplier on account at $260 each, terms of 3/10 n/30.

3 Returned 3 set of tires to supplier because the rubber was deteriorating.

9 Paid supplier the net amount owed for the tires, net of the discount.

10 Sold 3 sets of tires for $500 cash each.

11 One set of tires sold on the 10th was returned (can be resold), cash was refunded.

For the Journal entry on 5/10, what was the amount recorded for Sales Revenue Sold? (if the account was debited, enter as a positive number, if it was credited, enter as a negative number. Do not enter decimals.)