Is it me and the way i have done this or is it CoRE messing with my mind

[WAJWAJ]

I have created a Basic piston using my Smappee meter to turn a light green when solar wattage is greater than grid load wattage (when true) and turn the light red when not (when false). It would appear that when comparing 2 digit numbers 10-99 against 2 digit number it works but when it is a 2 digit number and compares to a 3 digit number 100-999 it doesn't, the same is true for 4 digit number being compared to 2 or 3 digit numbers. see screenshots attached.






I have tried various other ways of creating the same thing but always end up with the same anomaly.
Is any one able to assist with getting this working or have come across the same problem?

Thanks in advance