Google Sheets conditional formatting value where 1 column value lower than other column

My data:

E       F25.00%  11.11%30      2010      2040      400       1020      0

I want to have conditional formatting where:- if value in column F is lower than E, cell F should be colored red- if value in column F is equal or higher than E, cell F should be colored green- if value in column E is 0, don't apply any color on cell F

I tried with 2 rules simply using the dropdown values"Greater than or equal to" and "Less than". I tried that on a single cell, see image, but that doesn't work either and the higher value is marked as red.I tried a custom formula on the whole sheet =F31<=E31 and =F31>E31 but neither give the desired result.

This should be so simple but I'm missing something.

I checked here and here.