Thulisile bought a house and managed to secure a home loan for R XXXXXXXXXXwith monthly payments of R9 680,70 at a fixed interest rate of 13,75% per year, compounded monthly, over a period of 20...

Thulisile bought a house and managed to secure a home loan for R790 000 with monthly payments of R9 680,70 at a fixed interest rate of 13,75% per year, compounded monthly, over a period of 20 years. If an average yearly inflation rate of 9,2% is expected, then the real cost of the loan (the difference between the total value of the loan and the actual principal borrowed) is?