Problem with commissions on profitability

I think I *may* have found a problem with commissions calculated on profitability, at least it's a problem for us.

This stuff can be difficult to explain, but I will try my best.

I'll discuss one single product, "WidgetA"
[LIST]
[*]We purchase WidgetA for $275
[*]We sold WidgetA for $515.31
[*]We were PAID $412.25 (80% of the transaction total)[/LIST]I have a commission schedule setup to pay 33% of the inventory profit based on collection.

Given the details above I would calculate 33% of the profit (based on collection) to be:
(collection - cost) * 33%
OR
(412.25 - 275.00) * .33 = $45.29

NetSuite sees things differently.  It appears to be taking the percentage of collection to billed and applying it to everything, including cost.