function calculateAutoLoanRepayment() {
const loanAmount = parseFloat(document.getElementById(“loanAmount”).value);
const interestRate = parseFloat(document.getElementById(“interestRate”).value) / 100 / 12;
const loanTerm = parseInt(document.getElementById(“loanTerm”).value) * 12;
const extraPayment = parseFloat(document.getElementById(“extraPayment”).value);
if (isNaN(loanAmount) || isNaN(interestRate) || isNaN(loanTerm) || isNaN(extraPayment)) {
alert(“Please enter valid numbers.”);
return;
}
const monthlyPayment = (loanAmount * interestRate) / (1 – Math.pow(1 + interestRate, -loanTerm));
const totalPayment = (monthlyPayment + extraPayment) * loanTerm;
const totalInterest = totalPayment – loanAmount;
document.getElementById(“result”).value = totalPayment.toFixed(2);
document.getElementById(“interestPaid”).value = totalInterest.toFixed(2);
const stepsContent = `
Loan Amount: $${loanAmount}
Interest Rate: ${interestRate * 100 * 12}% annually
Loan Term: ${loanTerm / 12} years
Extra Monthly Payment: $${extraPayment}
Monthly Payment: $${monthlyPayment.toFixed(2)}
Total Loan Repayment: $${totalPayment.toFixed(2)}
Total Interest Paid: $${totalInterest.toFixed(2)}
`;
document.getElementById(“stepsContent”).innerHTML = stepsContent;
}
function toggleCalculationSteps() {
const steps = document.getElementById(“calculationSteps”);
steps.style.display = steps.style.display === “none” ? “block” : “none”;
}
