The Cole Company started operations this month and had the following transactions

1 Owners invested $20,000 to start company

3 Purchased 300 of supplies

9 Completed $1,900 of services for a customer on account

15 Received $500 from customers for services in advance

25 Received 900 from customers on account

30 Unpaid employee payroll totaled $1.200

At the end of the month $ 80 of supplies were on still hand What was the company's cash balance at the end of the month