There are several ways to navigate and interact within reports.
POV (Point Of View)
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In many reports, Reference Scenarios can be selected from a drop down list. The Reference Scenario selector allows the user to select to which scenario/category you want to compare to , with the main scenario/category and calculate the variances.
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The Scale and Precision can be changed by clicking on the link in the lower left-hand corner of the report (e.g. AMOUNTS IN THOUSANDS). Here you can change the report Scale and the report Precision (number of digits to right of decimal point).