E10-27A. Comprehensive flexible budget problem (Learning Objectives 2 \& 5 ) The Happy Balloon Company produces party balloons that are sold in multi-pack cases. Following is the company's performance report in contribution margin format for August: Requirements 2. What is the budgeted variable expense per unit? 3. What is the budgeted fixed cost for the period? 4. Compute the master budget variances. Be sure to indicate each variance as favorable (F) or unfavorable (U). 5. Management would like to determine the portion of the master budget variance that is (a) due to volume being different than originally anticipated and (b) due to some other unexpected cause. Prepare a flexible budget performance report to address these questions, using the actual sales volume of 60,000 units and the budgeted sales volume of 55,000 units. Use the original budget assumptions for sales price, variable cost per unit, and fixed costs, assuming the relevant range stretches from 50,000 to 75,090 units. 6. Using the flexible budget performance report you prepared for Requirement 5 , answer the following questions: a. How much of the master budget variance (calculated in Requirement 4) for operating income is due to volume being higher than expected? b. How much of the master budget variance for variable expenses is due to