A $300,000 mortgage at 5.8% compounded semiannually requires monthly payments that were calculated based on a 25 -year amortization. Upon reviewing her budget, the borrower decides to speed up the repayment of the loan by rounding her monthly payments up to the nearest $100. How much is the rounded up monthly payment, and how much is the amortization period shortened as a result of the decision to round up the monthly payments? (Do not round your intermediate calculations.) Amortization period month(s)