How to calculate bounty

So for example in 109 bounty builder the starting bounty is worth 1250 chips

Soo, if a player with a stack of 1250 chips opens utg at blind level 15/30, can i profitably shove 72o on him for 40 bigs? If not, explain why please.

Still not enough information out there for why you would be pushing with 7/2 off. If the guys been playing super tight folding everything on a raise then Sure you can take the risk , I just don't see the reward with 7/2 os , If it was suited it still wouldn't be really worth it but you'd at least have more out if he called