To answer my own question, I found this in another thread. I think the rate of 29.7 looks accurate doesn't it?
"New Commission Chart
For new Pay As You Go purchases we pay contributors 30% of the US dollar price. For purchases made using credits we pay $0.50 USD for each credit spent, just like before. This also applies to Extended Licenses. Here is a detailed breakdown of how much you will earn with each type of purchase (all values in USD):
Pay as You Go Credits (just like before)
Small $0.90 $0.50
Medium $1.50 $1.00
Large $2.70 $2.00
X-Large $3.90 $3.00
Vector $3.90 $3.00
Extended License $29.70 $25.00 "
Another more for less scheme? What's your take on this?