Calculate Cost Of Fanancing Used Car

var carPrice = parseFloat(document.getElementById(‘carPrice’).value) || 0;\nvar downPayment = parseFloat(document.getElementById(‘downPayment’).value) || 0;\nvar loanTerm = parseFloat(document.getElementById(‘loanTerm’).value) || 0;\nvar interestRate = parseFloat(document.getElementById(‘interestRate’).value) || 0;\n\nvar totalLoan = carPrice – downPayment;\nvar monthlyPayment = (totalLoan * interestRate * Math.pow(1 + interestRate, loanTerm)) / (Math.pow(1 + interestRate, loanTerm) – 1);\nvar totalInterest = monthlyPayment * loanTerm – totalLoan;\nvar totalCost = carPrice + totalInterest;\n\ndocument.getElementById(‘monthlyPayment’).textContent = monthlyPayment.toFixed(2);\ndocument.getElementById(‘totalInterest’).textContent = totalInterest.toFixed(2);\ndocument.getElementById(‘totalCost’).textContent = totalCost.toFixed(2);\n\n// Update chart\nvar ctx = document.getElementById(‘paymentChart’).getContext(‘2d’);\nif (window.paymentChart) window.paymentChart.destroy();\n\nwindow.paymentChart = new Chart(ctx, {\n type: ‘bar’,\n data: {\n labels: [‘Total Paid’, ‘Total Interest’],\n datasets: [{\n label: ‘Cost’,\n data: [totalCost, totalInterest],\n backgroundColor: [‘#004a99’, ‘#28a745’]\n }]\n },\n options: {\n responsive: true,\n scales: {\n y: {\n beginAtZero: true\n }\n }\n }\n});”
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