Of course, I guess I was unclear in my post. I understand that the different lots were bought at different prices.
The question is how to turn that nonsense off.
Whether one prefers to track it that way or not (I think it is absolutely nuts but customizable interfaces are a good thing), there is an objective error in how its reported now in terms of profit/loss. I would rather the profit loss was accurate, currently it is not. The true profit loss is based on a cost basis of $75 in my example, everything else is an accounting fiction.
If the answer is, there is no way to turn that off, then OK. Just curious if there was a setting I was missing.
Obviously this stuff can be tracked with spreadsheets etc. instead but I was hoping to fx it in the interface itself.