Please enter a valid resale value to see TCO.

"; if(tco_chartInstance) { tco_chartInstance.destroy(); tco_chartInstance = null; } } } } function tco_calculateMonthlyPayment(principal, annualRate, termMonths) { if (principal <= 0) return 0; if (termMonths <=0) return principal; const monthlyRate = (annualRate / 100) / 12; if (monthlyRate === 0) return principal / termMonths; return principal * (monthlyRate * Math.pow(1 + monthlyRate, termMonths)) / (Math.pow(1 + monthlyRate, termMonths) - 1); } function tco_renderChart(data) { if (tco_chartInstance) { tco_chartInstance.destroy(); tco_chartInstance = null; // Ensure old instance is fully cleared } if (!tco_el.tcoChartCanvas || !Chart) { console.error("Chart.js or canvas element not available."); return; } const ctx = tco_el.tcoChartCanvas.getContext('2d'); tco_chartInstance = new Chart(ctx, { type: 'pie', data: { labels: data.labels, datasets: [{ label: 'Cost Components ($)', data: data.values, backgroundColor: [ 'rgba(255, 99, 132, 0.8)', // Depreciation 'rgba(54, 162, 235, 0.8)', // Financing 'rgba(255, 206, 86, 0.8)', // Fuel/Energy 'rgba(75, 192, 192, 0.8)', // Insurance 'rgba(153, 102, 255, 0.8)',// Maintenance 'rgba(255, 159, 64, 0.8)' // Other Fees ], borderColor: '#fff', borderWidth: 1 }] }, options: { responsive: true, maintainAspectRatio: false, plugins: { title: { display: true, text: 'Total Cost of Ownership Breakdown', font: {size: 16}}, legend: { position: 'right', labels: {font: {size: 10}, boxWidth: 12, padding:10} }, tooltip: { callbacks: { label: function(context) { let label = context.label || ''; if (label) { label += ': '; } if (context.parsed !== null) { label += tco_formatCurrency(context.parsed); } return label; } } } } } }); } function tco_calculateAndDisplayTCO() { tco_updateCalculatedFields(); // Ensure base numbers are fresh let amountFinanced = 0; let totalLoanInterest = 0; // monthlyLoanPayment is not directly displayed in TCO table, but total interest is if (tco_el.isFinancingCheck.checked) { amountFinanced = Math.max(0, calculatedTotalInitialCost - (parseFloat(tco_el.downPayment.value) || 0) ); const loanAPR = parseFloat(tco_el.loanAPR.value) || 0; const loanTerm = parseInt(tco_el.loanTerm.value) || 0; if (amountFinanced > 0 && loanTerm > 0 && loanAPR >= 0) { // Allow 0% APR const monthlyPmt = tco_calculateMonthlyPayment(amountFinanced, loanAPR, loanTerm); totalLoanInterest = (monthlyPmt * loanTerm) - amountFinanced; totalLoanInterest = Math.max(0, totalLoanInterest); } } const ownershipDuration = parseFloat(tco_el.ownershipDuration.value) || 0; const annualMiles = parseFloat(tco_el.annualMiles.value) || 0; const fuelType = tco_el.fuelTypeSelect.value; let totalFuelEnergyCost = 0; if (fuelType === 'gasoline') { const mpg = parseFloat(tco_el.mpg.value) || 1; const gasPrice = parseFloat(tco_el.gasPrice.value) || 0; totalFuelEnergyCost = mpg > 0 ? (annualMiles / mpg) * gasPrice * ownershipDuration : 0; } else { const mpkwh = parseFloat(tco_el.mpkwh.value) || 1; const electricityPrice = parseFloat(tco_el.electricityPrice.value) || 0; totalFuelEnergyCost = mpkwh > 0 ? (annualMiles / mpkwh) * electricityPrice * ownershipDuration : 0; } const totalInsuranceCost = (parseFloat(tco_el.insuranceCost.value) || 0) * ownershipDuration; const totalMaintenanceCost = (parseFloat(tco_el.maintenanceCost.value) || 0) * ownershipDuration; const totalAnnualFeesCost = (parseFloat(tco_el.annualFees.value) || 0) * ownershipDuration; const totalOperatingCosts = totalFuelEnergyCost + totalInsuranceCost + totalMaintenanceCost + totalAnnualFeesCost; const resaleValue = parseFloat(tco_el.resaleValue.value) || 0; const depreciation = calculatedTotalInitialCost - resaleValue; const TCO = depreciation + totalLoanInterest + totalOperatingCosts; const avgAnnualTCO = ownershipDuration > 0 ? TCO / ownershipDuration : TCO; const avgMonthlyTCO = ownershipDuration > 0 ? TCO / (ownershipDuration * 12) : TCO; let resultsHTML = `

Total Cost of Ownership Breakdown (${ownershipDuration} Years)
Net Vehicle Cost (Price - Rebates/Trade-in)	${tco_formatCurrency(parseFloat(tco_el.netVehicleCostDisplay.textContent.replace(/[^0-9.-]+/g,"")))}
Sales Tax	${tco_formatCurrency(parseFloat(tco_el.salesTaxAmountDisplay.textContent.replace(/[^0-9.-]+/g,"")))}
Other Upfront Fees	${tco_formatCurrency(parseFloat(tco_el.upfrontFees.value))}
Subtotal Initial Cost Basis	${tco_formatCurrency(calculatedTotalInitialCost)}
Total Financing Costs (Interest)	${tco_formatCurrency(totalLoanInterest)}
Total Fuel/Energy Costs	${tco_formatCurrency(totalFuelEnergyCost)}
Total Insurance Costs	${tco_formatCurrency(totalInsuranceCost)}
Total Maintenance & Repairs	${tco_formatCurrency(totalMaintenanceCost)}
Total Other Annual Taxes/Fees	${tco_formatCurrency(totalAnnualFeesCost)}
Subtotal Operating & Financing Costs	${tco_formatCurrency(totalLoanInterest + totalOperatingCosts)}
Depreciation (Initial Cost Basis - Resale)	${tco_formatCurrency(depreciation)}
(-) Estimated Resale Value	-${tco_formatCurrency(resaleValue)}
Grand Total Cost of Ownership	${tco_formatCurrency(TCO)}
Average Annual Cost	${tco_formatCurrency(avgAnnualTCO)}
Average Monthly Cost	${tco_formatCurrency(avgMonthlyTCO)}

`; if(tco_el.resultsOutput) tco_el.resultsOutput.innerHTML = resultsHTML; const chartData = { labels: ['Depreciation', 'Financing (Interest)', 'Fuel/Energy', 'Insurance', 'Maintenance/Repairs', 'Other Annual Fees'], values: [ Math.max(0.01, depreciation), // Ensure chart slices are visible Math.max(0.01, totalLoanInterest), Math.max(0.01, totalFuelEnergyCost), Math.max(0.01, totalInsuranceCost), Math.max(0.01, totalMaintenanceCost), Math.max(0.01, totalAnnualFeesCost) ].map(v => parseFloat(v.toFixed(2))) // Ensure values are numbers for Chart.js }; tco_renderChart(chartData); if(tco_el.pdfDownloadBtn && tco_el.pdfDownloadBtn.style) tco_el.pdfDownloadBtn.style.display = 'block'; } function tco_resetForm() { if(tco_el.vehiclePrice) tco_el.vehiclePrice.value = "35000"; if(tco_el.rebatesTradeIn) tco_el.rebatesTradeIn.value = "2000"; if(tco_el.salesTaxRate) tco_el.salesTaxRate.value = "7"; if(tco_el.upfrontFees) tco_el.upfrontFees.value = "500"; if(tco_el.downPayment) tco_el.downPayment.value = "5000"; if(tco_el.isFinancingCheck) tco_el.isFinancingCheck.checked = true; if(tco_el.loanAPR) tco_el.loanAPR.value = "6.0"; if(tco_el.loanTerm) tco_el.loanTerm.value = "60"; if(tco_el.ownershipDuration) tco_el.ownershipDuration.value = "5"; if(tco_el.annualMiles) tco_el.annualMiles.value = "12000"; if(tco_el.fuelTypeSelect) tco_el.fuelTypeSelect.value = "gasoline"; if(tco_el.mpg) tco_el.mpg.value = "27"; if(tco_el.gasPrice) tco_el.gasPrice.value = "3.50"; if(tco_el.mpkwh) tco_el.mpkwh.value = "3.5"; if(tco_el.electricityPrice) tco_el.electricityPrice.value = "0.18"; if(tco_el.insuranceCost) tco_el.insuranceCost.value = "2000"; if(tco_el.maintenanceCost) tco_el.maintenanceCost.value = "700"; if(tco_el.annualFees) tco_el.annualFees.value = "150"; if(tco_el.resaleValue) tco_el.resaleValue.value = "12000"; if(tco_el.ownershipDurationDisplay) tco_el.ownershipDurationDisplay.textContent = tco_el.ownershipDuration.value || "X"; tco_updateCalculatedFields(); tco_toggleLoanFields(); tco_toggleFuelFields(); document.querySelectorAll('#tcoCalculator .tco-error-message').forEach(el => el.textContent = ''); if(tco_el.resultsOutput) tco_el.resultsOutput.innerHTML = ""; if(tco_chartInstance) { tco_chartInstance.destroy(); tco_chartInstance = null; } if(tco_el.pdfDownloadBtn && tco_el.pdfDownloadBtn.style) tco_el.pdfDownloadBtn.style.display = 'none'; if(tco_el.resultsTabButton) tco_el.resultsTabButton.disabled = true; tco_currentTab = 0; tco_openTab(null, 'tco-tabVehiclePurchase'); } function tco_downloadPDF() { if (typeof window.jspdf === 'undefined' || typeof window.jspdf.jsPDF !== 'function' || typeof window.html2canvas !== 'function' || typeof Chart === 'undefined' || typeof window.jspdf.jsPDF.API.autoTable !== 'function') { alert("PDF/Chart generation library not loaded. Check CDN links & internet."); return; } const jsPDFConstructor = window.jspdf.jsPDF; const resultsTableElement = document.getElementById('tco-resultsTable'); const chartCanvas = tco_el.tcoChartCanvas; if (!resultsTableElement || !tco_el.resultsOutput.textContent.includes("Grand Total Cost of Ownership")) { alert("No results to download. Please calculate TCO first."); return; } try { const pdf = new jsPDFConstructor('p', 'pt', 'a4'); const toolTitle = "Car Total Cost of Ownership Report"; const margins = { top: 40, bottom: 40, left: 30, right: 30 }; let yPos = margins.top; pdf.setFontSize(18); pdf.text(toolTitle, pdf.internal.pageSize.getWidth() / 2, yPos, { align: 'center' }); yPos += 25; const ownershipY = tco_el.ownershipDuration.value; pdf.setFontSize(10); pdf.text(`TCO Report for ${ownershipY} Years of Ownership`, margins.left, yPos); yPos += 20; pdf.setFontSize(11); pdf.text("Key Inputs:", margins.left, yPos); yPos += 15; pdf.setFontSize(9); pdf.text(`Vehicle Price: ${tco_formatCurrency(parseFloat(tco_el.vehiclePrice.value))}, Down Payment: ${tco_formatCurrency(parseFloat(tco_el.downPayment.value))}`, margins.left, yPos); yPos += 13; if(tco_el.isFinancingCheck.checked) { pdf.text(`Loan: ${tco_el.loanTerm.value}mo @ ${tco_el.loanAPR.value}% on ${tco_el.amountFinancedDisplay.textContent}`, margins.left, yPos); yPos += 13; } pdf.text(`Annual Miles: ${tco_el.annualMiles.value}, Resale Value: ${tco_formatCurrency(parseFloat(tco_el.resaleValue.value))}`, margins.left, yPos); yPos += 20; pdf.setFontSize(11); pdf.text("TCO Breakdown:", margins.left, yPos); pdf.autoTable({ html: '#tco-resultsTable', startY: yPos + 15, theme: 'grid', headStyles: { fillColor: [0, 123, 255], textColor: 255, fontSize: 9 }, styles: { fontSize: 8, cellPadding: 3, halign: 'right' }, // Default right align data cells columnStyles: { 0: { halign: 'left', fontStyle: 'bold' } }, // Left align first column (labels) didParseCell: function (data) { if (data.row.section === 'body' && data.row.raw && data.row.raw.classList) { if (data.row.raw.classList.contains('tco-summary-row')) { data.cell.styles.fontStyle = 'bold'; data.cell.styles.fillColor = [233, 236, 239]; if (data.cell.text && data.cell.text[0] && data.cell.text[0].includes("Grand Total")) { data.cell.styles.fontSize = 9; // Keep for grand total } } } // Specific styling for the "Grand Total" text itself to ensure boldness if (data.cell.section === 'body' && data.cell.text && data.cell.text[0] && data.cell.text[0].startsWith("Grand Total Cost of Ownership")) { data.cell.styles.fontStyle = 'bold'; data.cell.styles.fontSize = 9; } }, tableWidth: 'auto', margin: { left: margins.left, right: margins.right } }); yPos = pdf.lastAutoTable.finalY + 25; if (chartCanvas && tco_chartInstance && tco_chartInstance.ctx) { if (yPos > pdf.internal.pageSize.getHeight() - margins.bottom - 150) { pdf.addPage(); yPos = margins.top; } try { const chartImgData = chartCanvas.toDataURL('image/png', 1.0); const chartImgProps = pdf.getImageProperties(chartImgData); let pdfChartWidth = pdf.internal.pageSize.getWidth() - margins.left - margins.right - 100; if (pdfChartWidth > 350) pdfChartWidth = 350; // Max width for chart, slightly smaller const pdfChartHeight = (chartImgProps.height * pdfChartWidth) / chartImgProps.width; const chartX = (pdf.internal.pageSize.getWidth() - pdfChartWidth) / 2; pdf.setFontSize(11); pdf.text("TCO Chart:", chartX, yPos); yPos +=15; pdf.addImage(chartImgData, 'PNG', chartX, yPos, pdfChartWidth, pdfChartHeight); } catch(chartError) { console.error("Error adding chart to PDF:", chartError); // Continue without chart if it fails } } pdf.save('Total_Cost_of_Ownership_Report.pdf'); } catch (e) { alert("An error occurred during PDF generation: " + e.message + ". Check console."); console.error("PDF Generation Error:", e); } }