Waterway Care Corporation had the following selected transactions in September: 1. Collected $200 cash from customers for services performed in August. 2. Collected $525 cash from customers for services performed in September. 3. Billed customers $580 for services performed in September. 4. Performed $120 of services to customers who paid in advance in August. 5. Received $120 from customers in advance for services to be performed in October. (a) Calculate revenue for the month of September using the accrual basis of accounting. (Do not leave any answer field blank. Enter 0 for amounts.)