I am a home inspector and I am trying to create a shortcut that will help me with my workflow. During my inspections I take temperature readings at the HVAC registers and return air. I would like to be able to add each HVAC register temperature value sequentially via a menu prompt. I will also need a separate menu prompt for adding the return air temperature value.

I want the shortcut to do a couple of things with this data. First, I'd like it to take the value of the lowest temperature register and subtract this from the return air temperature value. This will give me "Delta T". I also want the shortcut to find the highest register value and the lowest register value and then subtract these temperatures. If the temperature difference is greater than 5 degrees I would like a prompt to return "Duct Balancing Recommended". If the temperature difference is less than 5 degrees then I would like the prompt to return "Duct Balancing Normal".

I've built out a shortcut that I feel is very close but there's still something wrong. Can someone please take a look at my shortcut and tell me how I can fix it?

Thanks in advance!