What EPC measures
Affiliate earnings per click is confirmed commission divided by the number of relevant clicks. If a campaign earns $240 from 800 human clicks, its EPC is $0.30. EPC turns traffic and revenue into one comparable unit.
Use commission, not gross order value, in the numerator. Use the clicks that had a real opportunity to convert in the denominator. Mixing order value with commission or comparing bot-heavy totals can make one campaign look stronger than it is.
- Formula: confirmed commission ÷ human clicks = EPC
- Example: $240 ÷ 800 = $0.30 EPC
- Keep the currency and attribution window consistent across comparisons
Why EPC is more useful than click count
A link with 10,000 clicks and $500 commission has a $0.05 EPC. Another with 1,000 clicks and $300 commission has a $0.30 EPC. The first produces more total revenue today, but the second converts each unit of attention six times more efficiently.
That does not mean you should immediately stop the high-volume campaign. It means you have a decision to investigate: improve its offer, placement or audience match, while testing whether the high-EPC campaign can accept more traffic without losing efficiency.
Compare like with like
EPC becomes misleading when attribution windows, currencies or traffic definitions change between rows. Choose one reporting window—such as the previous 30 days—and use it for every campaign in the comparison.
Separate channels when intent differs materially. A product-review article may naturally outperform a broad social post because the reader is closer to buying. Compare each asset with its peers before comparing your entire portfolio.
- Use the same start and end dates
- Convert commission to one reporting currency
- Exclude obvious automation consistently
- Label new campaigns with too little data as inconclusive
Diagnose low EPC
Low EPC can come from low conversion rate, low commission per conversion or poor traffic quality. Break the number into those components before changing the campaign.
If clicks are qualified but conversions are low, inspect landing-page relevance, price, trust and mobile usability. If conversion rate is acceptable but commission is low, compare payout structures or product mix. If the click source is broad and low-intent, improve the promise and placement before replacing the offer.
- Conversion rate = conversions ÷ clicks
- Average commission = commission ÷ conversions
- EPC = conversion rate × average commission
Use EPC as a decision habit
Review active campaigns on a fixed schedule. Record clicks, conversions, commission and EPC, then choose one action: scale, improve, hold or stop. Avoid reacting to a single sale or a short spike.
LinkYield brings click totals and recorded commission into the same workspace so you can compare revenue links without rebuilding the calculation each time. The goal is not a perfect dashboard; it is a faster, evidence-based allocation decision.
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