Lead Sales Performance Analyzer

Analyze EPL (Earnings Per Lead) and EPSL (Earnings Per Successful Lead) with confidence intervals and margin of error trends

Analysis Controls

📁 Choose CSV File
How many samples to jump between calculations
Higher = wider confidence intervals

💰 Performance Trend with Confidence Band

📈 Interpretation

The chart shows how the average performance stabilizes as more data is collected. The shaded area represents the confidence interval - narrower bands indicate more precise estimates.

📉 Margin of Error Trend

🎯 Insights

Margin of error decreases as sample size increases. This shows how much additional data improves measurement precision for your lead performance metrics.