One very basic one that I see is "how much employee time am I saving you?" If a company pays its engineers $75/hour, saving 10 hours of engineer time is worth

One very basic one that I see is "how much employee time am I saving you?" If a company pays its engineers $75/hour, saving 10 hours of engineer time is worth $750/month! That's a high number -- plus, it's on you to prove you really can save that much time with your service -- but I think it's a reasonable starting point.