I cant understand the b part, what is the remaining balance formula and intereet formula ? Can you explain all of the part.

2. Constant Payment Mortgage (CPM) for $100,000 is made at a time when the interest rate is 15%. The loan is fully amortizing, has a maturity of 2 years and payments will be made monthly. a. Whatwill be themonthlypayments? 100000=x(PVIFA1.28,24)=x20.6242x=4848.665 b. Whatwill be theremainingbalance at theend of thesecondmonth? (Form an amortizationtahle)