This sounds like a good startup concept for a SaaS:
1-low cogs (80%+ gross margins) 2- predictable and long term renewal contracts; low customer churn 3- if this is a problem for a 10b+ company then nearly every other company should also be your potential customer
Price your product in a similar way that others do (there is always competition). Remember that the price for your first customer will not be the price for every other customer. You can and will iterate just like you do with your code.
There is plenty of discussions around ACV, ARR and product-led growth out there. For example