Hi, I am working on spreadsheet for my daughter's fitness business. We are almost done with it. Our concern now is row 14 INCHES +/-. She has added one more calculation - calculating the total number of inches lost or gained. I think I have the calculation for that specific concern --- basing that on data from Circumference data immediately below. C14 works. D14 - she doesn't care about so we have no formula there. We totaled E15:E23 to give us a number of inches measured. (In the end we don't want the number to show). Beginning F14, we want to calculate the difference between the total number of inches in the preceding column. I have figured that out (I think). We want to drag the formula out but have a blank cell show up and not 0 or VALUE# or whatever. I am attaching spreadsheet. Thank you so much! You are all wonderful!!View attachment Book1 - fitness help.xlsx