TJ has borrowed 8150 dollars at a nominal rate of interest of 4.2 percent convertible monthly. He has agreed to repay the loan with equal monthly payments for 7 years, the first coming one month after the loan is made. After making the 30th payment, he makes a deal with the lender where he'll pay off the balance owed on the loan with 38 more equal monthly payments. The lender agrees, provided that the yield rate on the remaining payments is 7.5 percent convertible monthly. Under these new terms, how large are TJ's new monthly payments?
Answer = dollars.