Ad price floor break-even calculator
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Worked example
- Control fill rate: 80 %
- Control net CPM: 2 USD
- Test net CPM: 2.5 USD
Required paid fill · 64%
See the formula
Control fill rate × Control net CPM ÷ Test net CPM.
How to interpret the result
A result above 100% means the test cannot match control revenue at the assumed price. Compare the same placements and fee treatment.
Publisher example
At 75% control fill and $2 control CPM, a $1 test CPM requires 150% fill. The test cannot match control revenue at that price.
Related reading: Prebid price floors: calculate the fill rate needed to break even
Measurement reference: Google AdSense reporting metrics