Please Help........

Karim Corporation requires a minimum $8,300 cash balance. Loans taken to meet this requirement cost 2% interest per month paid at the end of each month). Any preliminary cash balance above $8,300 is used to repay loans at month-end. The cash palance on July 1 is $8,700, and the company has no outstanding loans. Budgeted cash receipts (other than for loans received) and budgeted cash payments (other than for loan or interest payments) follow. Prepare a cash budget for July, August, and September. (Negative balances and Loan repayment amounts (if any) should be indicated with minus sign. Round your final answers to the nearest whole dollar.)