Hello I am trying highlight a field when one margin is less than another is this possible , my code below doesn't work ? =IIF(SUM(Fields!ActSales.Value-Fields!ActCost.Value))/Fields!ActSales.Value)<(SUM(Fields!BudSales.Value-Fields!BudCost.Value)/Fields!BudSales.Value))), "Tomato","Moccasin") ThanksKiwi_Wizz

Hi It looks like your formula contains a mixture of using SUM and not using SUM. I suspect you are missing SUM() around your divisors. It also looks like you have incorrectly balanced your brackets in the first part of the formula (the two brackets at the end of the first SUM. Craig Bryden - Please mark correct answers