Conditional formating issue

Hi All,
I did a search in the forum before posting this. Please guide me to get the below resolved
I am new to business objects and trying to build conditional formatting based on column Sum(quantity) ie my report is having breaks on name field and Number Id field and Place field. The Place field is having values like OFF,LON,IMX,LOM. If the sum(quantity) of OFF value is equal to other Place values like LON,IMX,LOM the sum(quantity) both place value cells should be highlighted with green color else it should show red color.