CRO Basics

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# Conversion Rate
CR = (Conversions / Visitors) × 100

# A/B Testing
Variant A: 500 visitors, 25 conversions = 5%
Variant B: 500 visitors, 35 conversions = 7%
Lift: (7-5)/5 × 100 = 40% improvement

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def conversion_metrics(visitors, conversions, revenue):
    conv_rate = (conversions / visitors * 100) if visitors else 0
    avg_order = (revenue / conversions) if conversions else 0
    revenue_per_visitor = (revenue / visitors) if visitors else 0

    return {
        "conversion_rate": f"{conv_rate:.2f}%",
        "avg_order_value": f"${avg_order:.2f}",
        "revenue_per_visitor": f"${revenue_per_visitor:.2f}",
        "annual_projection": f"${revenue_per_visitor * visitors * 365:,.0f}"
    }

m = conversion_metrics(visitors=5000, conversions=150, revenue=12000)
print("CRO Metrics:")
for k, v in m.items():
    print(f"  {k:22}: {v}")