Conditional Formatting not working

When you select Percent in this dropdown, you’re setting the rule boundaries as a percent of the overall range of values from minimum to maximum. 

https://docs.microsoft.com/en-us/power-bi/create-reports/desktop-conditional-table-formatting

If the field the formatting is based on contains percentages, write the numbers in the rules as decimals, which are the actual values; for example, ".25" instead of "25". Also, select Number instead of Percent for the number format. For example, "If value is greater than or equal to 0 Number and is less than .25 Number" returns values less than 25%.