Amy Austin established an insurance agency on March 1 of the current year and completed the following transactions during March: Opened a business bank account with a deposit of $50,000 from personal funds. Purchased supplies on account, $4,000. Paid creditors on account, $2,300. Received cash from fees earned on insurance commissions, $13,800. Paid rent on office and equipment for the month, $5,000. Paid automobile expenses for the month, $1,150, and miscellaneous expenses, $300. Paid office salaries, $2,500. Determined that the cost of supplies on hand was $2,700; therefore, the cost of supplies used was $1,300. Billed insurance companies for sales commissions earned, $12,500. Withdrew cash for personal use, $3,900.