By checking this box the Variance Threshold setup in the in Manage Company Databases/Company Definitions/Budget Variance tab will be applied to the variance data. If a variance is below the threshold it will not display in the report if the box is checked.
The threshold are applied to the variances of current month and year search criteria. Therefore in the below screen the threshold will apply to variances for February 2014.
Once the box is checked or unchecked the Search button needs to be clicked to apply the criteria to the data.
Below is an example of the Manage Company/Company Definitions/Budget Variance tab.
Report with "Apply Variance Threshold" checked.