need the Excel formulas for this as well

Problem 1 check figures: (a) June ending cash 72,719 (b) January borrowing 5,262, April borrowing 0 (c) Jan ending cash 12,000 May ending cash 47,431 (d) March borrowing (2,435). For this problem, you can copy/paste for each part and then make changes. You can put them all on one sheet or different sheets. Durango Mountain Bike Tours' ending cash balance as of December 31, 2020 was $10,000. Its expected cash collections and payments for the next six months are given in the following table. a. Calculate the firm's expected ending cash balance for each month. b. Assuming that the firm must maintain an ending cash balance of at least $12,000, how much must they borrow during each month? c. If the firm must pay 5% annual interest on its short-term borrowing, what are the ending cash balances for each month? d. What are the ending cash balances if the firm uses any cash in excess of the minimum to pay off its short-term borrowing in each month