Your notion of how you want A1 to work is not based on sound logic. Based on what you've said, A1 and A2 contain data, not formulas. Yet, you go on to say you want A1 to change based on the relationship between A1 and A2. That doesn't make sense. You need to use A3 or some other cell for a formula that evaluates A1 and A2. Try that and then post back if you need help with the formula.