Determine pooling percentage

hypothetical example: if the revenue on a producing well, after one year is $1 million. What would be my take if I as a lessor percentage is 17.5%?

Not enough information to even guess. At the top of this page where it says mineral owner resources, you can find a royalty calculator. The calculator will give a very optimistic approximation. I think the numbers I got from it were probably 20% to 25% optimistic due to many factors such as taxes fees and charges. I hope this helps.