im so I have a box that is 15.1 inches and I have a self that is 15 ins high . if I change it to 15 it will fit but if the change is no over 3% change it when then revert back to 15.1 what is the excel formula for this can anyone help me the info would be cell a2 the 15 for the self height and the box height 15 and I would want the answer in c2 I am a beginner at writing formula ya thanks to anyone that can help me