Clickbank Refund Rate

An indivual affiliate's refund rate for an individual product = r x 100%/t, where r is the number of refunds he has for that product and t is the total number of sales (including refunded sales) he has for that product.

That's the only refund-rate that's meaningful: knowing an individual product's overall refund rate, across all its affiliates - contrary to what many affiliates imagine - isn't really very helpful at all.

The reality is that different affiliates typically have hugely differing refund rates for the same products. As any member of ClickBank's staff with whom you discuss it will quickly explain, affiliates who have very high refund rates tend to have them for every product they promote, while those of us who have very low refund rates also tend to have those for every product we promote. The individual affiliate, the representations made by the individual affiliate, the traffic sources used by the individual affiliate, and so on, are overwhelmingly the significant factors.

It's also true that some niches, because of the overall nature of their products and traffic demographics, do tend collectively to have slightly higher-than-average refund rates, but this is mostly a red herring that has very little to do with the realities explained just above: the bottom line here is that affiliate behavior is by far the primary determinant of ClickBank refund rates.