I'm currently working on a basic evaluation survey on excel. I've set it up so that one can input letter grades for each aspect of the survey. The letter grades are converted into numbers, and added up to form a total score. My question is, how do I make the sheet output a letter to the user, that is determined by the total score? (ie. 90 and above is an A, 80 and above is a B, etc.) Any assistance would be appreciated.