let carLoanSteps = “”; const currencySymbol = “$”, fixedCurrency = “USD”; function calculateCarLoan(){ carLoanSteps=””; const loanAmount = parseFloat(document.getElementById(“loanAmount”).value); const interestRate = parseFloat(document.getElementById(“interestRate”).value) / 100; const loanTerm = parseInt(document.getElementById(“loanTerm”).value); if(isNaN(loanAmount) || isNaN(interestRate) || isNaN(loanTerm) || loanAmount <= 0 || interestRate <= 0 || loanTerm <= 0){ alert("Please enter valid positive values for all fields."); return; } const monthlyRate = interestRate / 12; const numPayments = loanTerm * 12; const monthlyPayment = (loanAmount * monthlyRate) / (1 – Math.pow(1 + monthlyRate, -numPayments)); const totalPayment = monthlyPayment * numPayments; const totalInterest = totalPayment – loanAmount; document.getElementById("monthlyPayment").value = formatCurrency(monthlyPayment); document.getElementById("totalInterest").value = formatCurrency(totalInterest); carLoanSteps += `Inputs:
Loan Amount: ${formatCurrency(loanAmount)}
Interest Rate: ${(interestRate * 100).toFixed(2)}%
Term: ${loanTerm} years

`; carLoanSteps += `Formulas:
Monthly Payment = (Loan Amount × Monthly Interest Rate) / (1 – (1 + Monthly Interest Rate)^-Number of Payments)
Total Interest = (Monthly Payment × Number of Payments) – Loan Amount

`; carLoanSteps += `Results:
Monthly Payment: ${formatCurrency(monthlyPayment)}
Total Interest Paid: ${formatCurrency(totalInterest)}
`; if(document.getElementById(“calculationStepsCarLoan”).style.display === “block”){ document.getElementById(“calculationStepsCarLoan”).innerHTML = carLoanSteps; } } function resetCarLoan(){ document.querySelectorAll(“#calculator input”).forEach(el => el.value = “”); carLoanSteps = “”; document.getElementById(“calculationStepsCarLoan”).innerHTML = “

Not calculated yet.

“; } function toggleCarLoanSteps(){ const s = document.getElementById(“calculationStepsCarLoan”); const a = document.getElementById(“toggleArrowCarLoan”); if(s.style.display === “none” || s.style.display === “”){ s.style.display = “block”; a.style.transform = “rotate(180deg)”; s.innerHTML = carLoanSteps || “

Not calculated yet.

“; } else { s.style.display = “none”; a.style.transform = “rotate(0deg)”; } } function formatCurrency(n) { return currencySymbol + n.toFixed(2) + ” ” + fixedCurrency; }