Effects of adding bug under SWG

Flying Tivo

TFP Guide
Jan 24, 2017
3,100
Monterrey, NL, Mexico
Pool Size
7500
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
When i calculate for "SWG Cell %" it wont let me add a decimal point. Like 2.5, only 1,2,3, etc.. It does let me add decimal point under Pump runtime. I know some SWG dont do single digit adjustments.