Should you keep spending?
Your project is over budget. The sunk cost fallacy says keep going. The numbers might say otherwise. Let's find out.
About sunk costs
The money already spent is gone regardless of what you decide. The only question that matters: is the remaining cost to finish less than the value you'll get? If yes, finish. If no, stop — no matter how much you've already spent.
Numbers only tell part of the story. The organizational, contractual, and political factors matter too.
Talk to someone who's done this before →