Part II: Working with Formulas and Functions
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FIGURE 13.15
This worksheet demonstrates summing based on multiple criteria.
Using Or criteria .....................................................................................................
Suppose that you want to get a sum of past-due invoice amounts or ones associated with the
Oregon office. In other words, the value in the Amount range will be summed if either of the fol-
lowing criteria is met:
l The corresponding value in the Difference range is negative.
l (^) The corresponding text in the Office range is Oregon.
This example requires an array formula:
{=SUM(IF((Office=”Oregon”)+(Difference<0),1,0)*Amount)}
A plus sign (+) joins the conditions; you can include more than two conditions.