The SUM first cell coordinate shouldn’t move because we need to sum our numbers from the start (from January sales quantity).Īs for the total number, we need to refer to it all the time as the divisor in our formula. For the SUM, as we calculate cumulative percentages, we need to sum numbers as we go with our calculation. This is great for our cumulative percentages calculation as we need to always refer to them. That means when we copy the formula anywhere, the total and SUM first cell coordinate references won’t move. You can type them yourself or press the F4 button (Command + T for Mac) when your cell cursor is in the total cell coordinate.įor those who don’t know, the $ symbols will make a cell coordinate reference becomes an absolute reference. Add them in front of the total and SUM first cell column letter and row number references like this. If you want to do it fast, then add dollar symbols ($) in the formula you just write. Here comes the important part of the calculation of the cumulative percentages. If you want to increase/decrease the number of decimals in the percentage, use the increase decimal/decrease decimal button. We write this SUM so we can copy this formula writing later to get all the cumulative percentages we need.ĭon’t forget to also convert the formula result into a percentage format. We input a cell range that contains the January sales quantity cell coordinate only to the SUM.
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