Cost-Benefit Analysis Calculator

Make informed decisions by quantifying the value of your projects.

Project Parameters

Project Name

Analysis Period (Years)

Discount Rate (%)

Investment Costs

One-Time Costs

Recurring Costs (Annual)

Project Benefits

One-Time Benefits

Recurring Benefits (Annual)

Analysis Results

Cumulative Net Value Over Time

${analysisData.projectName}

Executive Summary

Return on Investment (ROI)

${results.roi.toFixed(2)}%

Net Present Value (NPV)

$${results.npv.toLocaleString()}

Payback Period

${typeof results.paybackPeriod === 'number' ? results.paybackPeriod.toFixed(2) + ' Years' : 'N/A'}

Total Net Benefit

$${(results.totalBenefits - results.totalCosts).toLocaleString()}

Cumulative Net Value Forecast

${costsHtml} ${benefitsHtml}

`; const pdfTemplate = document.getElementById('pdf-template'); pdfTemplate.innerHTML = reportHtml; pdfTemplate.classList.remove('invisible'); try { const { jsPDF } = window.jspdf; const canvas = await html2canvas(pdfTemplate.querySelector('.pdf-report-container'), { scale: 2 }); const imgData = canvas.toDataURL('image/png'); const pdf = new jsPDF({ orientation: 'p', unit: 'pt', format: 'a4' }); const pdfWidth = pdf.internal.pageSize.getWidth(); const pdfHeight = (canvas.height * pdfWidth) / canvas.width; pdf.addImage(imgData, 'PNG', 0, 0, pdfWidth, pdfHeight); pdf.save(`${analysisData.projectName.replace(/\s+/g, '_')}_CBA_Report.pdf`); } catch(e) { console.error('PDF Generation Error:', e); } finally { downloadPdfBtn.disabled = false; downloadPdfBtn.textContent = 'Download Analysis Report'; pdfTemplate.classList.add('invisible'); } } downloadPdfBtn.addEventListener('click', generatePdfReport); // --- INITIALIZATION --- populateProjectInputs(); renderLists(); switchTab(0); });