Automation Hub - ROI

Hi all,
I have a question that I hope someone can help with.

I’m using the ROI within Automation Hub to help me make a decision on whether we proceed with the automation or not. We have lots of ideas at the moment, thank God, so I’m really looking at using the ROI to create a baseline which I can say “Sorry, the ROI for this automation really doesn’t stack up so we won’t be proceeding”.

My problem is that I don’t know what to set the baseline to.

For Example, I have one at the moment that is going to take 40 days development for a saving of ~100 hrs per week. When I add the cost of ongoing support the ROI works out as below. This is obviously a poor ROI but I’m struggling to set a baseline of what’s good v’s not good.

Is there a way of working out some kind of % from the data below and then setting a reasonable baseline I can work with…

Appreciate and feedback…