Please help with Interest expense per month, Borrowing (repayment), and how to obtain the correct ending cash balances. Those on the document are NOT correct, they are just automatically created based off what I insert in the cells!

Newman Medical Clinic has budgeted the following cash flows January February March $120,000 $126,000 $146,000 Cash receipts Cash payments For inventory purchases For S&A expenses 100,000 41,000 82,000 42,000 95,000 37,000 Newman Medical had a cash balance of $18,000 on January 1. The company desires to maintain a cash cushion of $7,000. Funds are assumed to be borrowed, in increments of $1,000, and repaid on the last day of each month; the interest rate is 3 percent per month Repayments may be made in any amount available. Newman pays its vendors on the last day of the month also. The company had a monthly $40,000 beginning balance in its line of credit liability account from this year's quarterly results. Required Prepare a cash budget. (Round intermediate and final answers to the nearest whole dollar amounts. Any repayments/shortage should be indicated with a minus sign.) Cash Budget February March Add: Cash receipts Cash available Less: Cash payments $18,000(4,200)(2,200) 146,000 143,800 120,000 126,000 121,800 138,000 For inventory purchases For S&A expenses Interest expense per month 100,000 41,000 1,200 82,000 95,000 42,000 37,000 Total budgeted payments Payments minus receipts 142,200 124,000 132,000 (4,200) Surplus (shortage) Financing Activity (2,200) 11,800 Borrowing (repayment) nding cash balance $(4,200$(2,200)$ 11,800