At this stage in the game you're going to have to speculate to accumulate, but as the table shows you'll be making back much more money upon completing these missions than you'll be paying to set them up. You'll also get first-time completion bonuses of GTA$100,000 for each mission, and an additional GTA$1,000,000 for if you finish them all in order. If you stick with the same team throughout all of the Heists, you'll get a further GTA$1,000,000 on top of that and there is GTA$10,000,000 up for grabs if you don't lose a life. There's potential, then, to earn millions of GTA$ at this stage.
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