Information about a company's cash budget (from Jun through Sep) is as follows: Cash Budget Jun Jul Aug Sep Cumulative Cash Balance 50,750 179,250 158,000 (294,000) Monthly Borrowing / Repayment 68,000 Cumulative Loan Balance . .. .. 68,000 Marketable Securities Purchased 250 128.750 107,500 (236,500) Sold Cumulative Marketable 250 129,000 236,500 Securiti Ending Cash Balance $50,500 $50,500 $50.500 S10.500 Explain how the borrowing provision in Sep is $68,000. Show your step-by-step calculations