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Re:How To Read an Unlabeled Sales Chart by jules on Tuesday February 05, 2013 @07:21AM (#5170265)
Both sides are unitless: sales is not in dollars but the number of sales.
Re:How To Read an Unlabeled Sales Chart by sesqu on Tuesday February 05, 2013 @11:48AM (#5171616)
The units are actually rates: sales per day.