I need help getting my stuff to display using inputs and a dropdown. Loan Amortization principal interestRate 36 months 24 months 12 months Submit document.writeln(amort()_;

I need help getting my stuff to display using inputs and a dropdown.

principal interestRate

36 months 24 months 12 months

function amort() { var terms = document.getElementById("aa").value; var balance = document.getElementById("ab").value; var interestRate = document.getElementById("ac").value;

var monthlyRate = interestRate/12; var payment = balance * (monthlyRate/(1-Math.pow( 1+monthlyRate, -terms))); var result = "Loan amount: $" + balance.toFixed(2) + "
" + "Interest rate: " + (interestRate*100).toFixed(2) + "%
" + "Number of months: " + terms + "
" + "Monthly payment: $" + payment.toFixed(2) + "
" + "Total paid: $" + (payment * terms).toFixed(2) + "

"; result += "

" + ""; for (var month = 1; month <= terms; month++){ var monthlyInterest = 0, monthlyPrincipal = 0; result += ""; result += ""; result += ""; monthlyInterest = balance * monthlyRate; result += ""; monthlyPrincipal = payment - monthlyInterest; result += ""; balance = balance - monthlyPrincipal; result += ""; } result += "

Month	Balance	Interest	Principal
" + (month) + "	" + balance.toFixed(2) + "	" + monthlyInterest.toFixed(2) + "	" + monthlyPrincipal.toFixed(2) + "

"; return result; }

it should display

month	balance	interest	Principal
1	6000.00	42.50	480.83
2	5519.18	39.09	484.22
3	5034.96	35.66	487.65
4	4547.30	32.21	491.11
5	4056.19	28.73	494.59
6	3561.61	25.23	498.09
7	3063.52	21.70	501.62
8	2561.90	18.15	505.17
9	2056.73	14.57	508.75
10	1547.97	10.96	512.35
11	1035.62	7.34	515.98
12	519.64	3.68	519.64