o The master budget is based on an ex ante (before-the-fact) prediction of the activity level.
o The flexible budget is based on ex post (after-the-fact) knowledge of the actual activity
level.
LO 16-3 Compute and interpret the sales activity variance.
COMPARING BUDGETS AND RESULTS
• A comparison of the master budget with the flexible budget and with actual results is the
basis for analyzing differences between plans and actual performance.
• Sales Activity Variance
o Sales activity variance (also known as sales volume variance) is the difference between
operating profit in the master budget and operating profit in flexible budget that arises
because the actual number of units sold is different from the budgeted number.
▪ That is:
o The sales activity variance, as shown in Exhibit 16.4, is useful for management because:
▪ It isolates the change in operating profits caused by the actual activity being different
from the master budget level.
▪ The resulting flexible budget shows budgeted sales, costs, and operating profits after
considering the activity change but before considering differences in unit selling
prices, variable costs, and fixed costs from the master budget.