Chapter 10
Flexible Budgets and Performance Analysis
Solutions to Questions 10-1 The planning budget is prepared for the planned level of activity. It is static because it is not adjusted even if the level of activity subsequently changes.
10-2 A flexible budget can be adjusted to reflect any level of activity—including the actual level of activity. By contrast, a static planning budget is prepared for a single level of activity and is not subsequently adjusted.
10-3 Actual results can differ from the budget for many reasons. Very broadly speaking, the differences are usually due to a change in the level of activity, changes in prices, and changes in how effectively resources are managed.
10-4 As noted above, a difference between the budget and actual results can be due to many factors. Most importantly, the level of activity can have a very big impact on costs. From a manager’s perspective, a variance that is due to a change in activity is very different from a variance that is due to changes in prices and changes in how effectively resources are managed. A variance of the first kind requires very different actions from a variance of the second kind. Consequently, these two kinds of variances should be clearly separated from each other. When the budget is directly compared to the actual results, these two kinds of variances are lumped together.
10-5 An activity variance is the difference between a revenue or cost item in the static planning budget and the same item in the flexible budget. An activity variance is due solely to the difference in the level of activity assumed in the planning budget and the actual level of activity used in the flexible budget. Caution should be exercised in interpreting an activity variance. The “favorable” and “unfavorable” labels are perhaps misleading for activity variances that involve costs. A “favorable” activity