How good is your maths?

I'd like to get math opinions on this issue, so please leave PF issues aside. I'm testing my math skills and would like to see what you guys come up with.

That said...I'm playing Party Super Monday. I am sitting at an uber-tight table. I have not played a hand in 30 minutes.

75/150 blinds. I have 3000 chips, Button has 5000.

I am dealt T3o UTG. I min raise to 300. Button calls. SB folds, BB calls. Pot: T975

Flop: KJ7 rainbow.
BB checks, I bet 550, button calls, BB folds. Pot: T2075

Turn: 9
I move in for another 2150.

Alright I know you all hate the play...but here is my question.

What % of time does button need to fold to make this a profitable play? I think I know the answer, but would appreciate input.