Sample size and sample procedure

Hi QM experts,

There is a inspection plan, and have two MIC: Characteristic_A and Characteristic_B, but different sample procedures.

Characteristic_A        SampleProcedureA: inspect 10%

Characteristic_B        SampleProcedureB: inspect 20%

And we can see the sample size in QA03. I want to know How to calculate this sample size? By inspect 10% or 20%?

Thanks.

Regards,

Steve