Solution to this accounting problem please show work. Thanks in advance.

Sarafina is making monthly payments into an annuity. She wants to have $300 in the fund to buy a new convection range in nine months, and the account pays 8.4% annual interest. What are her monthly payments to the account? To have $300 in the fund in nine months, her monthly payments must be $L Round the final answer up to the nearest cent as needed. Round all intermediate values to six decimal places as needed)