How Do You Know When to Kill a Project?

How do you know when to kill a project? How do you trade off your team's time versus the potential uplift of revenue from that algorithm? So this can happen. One like I typically mentioned is that you need to have the executive buying into whatever solution you are devising. They need to have a close watch on what you're proposing. And then if your current solution does not meet the SLA, then you'll have to iterate and find new areas.