Amy Austin established an insurance agency on March 1 of the current year and completed the following transactions during March:

1. Opened a business bank account with a deposit of $50,000 in exchange for common stock.
2. Purchased supplies on account, $4,000.
3. Paid creditors on account, $2,300.
4. Received cash from fees earned on insurance commissions, $13,800.
5. Paid rent on office and equipment for the month, $5,000.
6. Paid automobile expenses for month, $1,150, and miscellaneous expenses, $300.
7. Paid office salaries, $2,500.
8. Determined that the cost of supplies on hand was $2,700; therefore, the cost of supplies used was $1,300.
9. Billed insurance companies for sales commissions earned, $12,500.
10. Paid dividends, $3,900.

Determine the net income for March.

How much did Marchs transactions increase stockholders equity by $?