Function Performed — Subtracts each argument's average value from each occurrence of the argument.
Number of Arguments — One member or calculation.
Options — Whether missing values should be set to 0 for the purposes of the calculation.
Example — Consider a spreadsheet with Actual as a column and Colas, Root Beer, and Cream Soda as rows. If the Actual values for these products were 100, 200, and 300, the average would be 200. So the Difference from Average column would be -100, 0, 100.