The % Differences and Enable Financial Intelligence options cooperate to provide four calculations for the Traffic Lighting dialog box.
When neither option is selected, the Traffic Lighting dialog box compares selected members using a conventional subtraction calculation.
When only the % Differences option is selected, the Traffic Lighting dialog box compares the selected members using a conventional percent difference calculation.
When the Enable Financial Intelligence option is selected, the Traffic Lighting dialog compares the selected members using an advanced variance calculation that recognizes expenses and liability dimensions as negative values.
When both options are selected, the Traffic Lighting dialog compares the selected members using an advanced variance percent calculation that recognizes expenses and liability dimensions as negative values.
Understanding the calculations and the nature of your dimension metadata helps you to better compare dimensions.