Answer:
It compare the difference among the actual performance and budgeted performance grounds on the volume of actual sales.
Explanation:
Flexible budget performance report is the report which is used for comparing or analyzing the actual results or outcomes for the period with the budgeted outcomes and it is generated through the flexible budget.
In short, it is that report which is the management report and compares the actual revenues as well as costs for the year with the budgeted revenues as well as costs grounded on the volume of actual sales.