Yeah I'm not sure what the discrepancy is. This afternoon I'm going to dig a bit more into my records.
In my data right now I see a few examples of an $80 purchase match to $56 in proceeds (70%) matched to $56 of a refund.
I can't say I think the 30% fee is appropriate anymore, but this particular case being made about refunds does not appear to be accurate for me at least.
Could be that this developer is confused, maybe the way Apple represent the data is confusing in the records or something... in which case my apologies for spreading false information, but he seemed pretty convinced!
In my data right now I see a few examples of an $80 purchase match to $56 in proceeds (70%) matched to $56 of a refund.
I can't say I think the 30% fee is appropriate anymore, but this particular case being made about refunds does not appear to be accurate for me at least.