11.1 Discuss the three variances that help explain the sales volume variance.11.2 Identify four revenue drivers.11.3 Why is the efficiency variance more useful for control purposes than the price variance?11.5 Discuss why the variable overhead spending variance does not just focus on price.11.8 Explain why variances for direct material and direct labour are separated into price and efficiency variances.11.18 What is the cause of an unfavourable volume variance?11.20 Revenue Variances LSunset Solar installs solar panels throughout Australia. The accountants estimated the market size to be 2 million solar panels with Sunset Solar hoping to achieve 5% market share. The static budget shows that each panel is expected to provide a $2000 contribution margin. At the end of the financial period, the actual sales volume was 90 000 panels. Management were surprised by the low sales volume especially given that analysts had identified that the market size had grown by 2% due to government rebates on solar panel installation. Required(a) Calculate the actual market size.(b) Calculate the actual market share.(c) Calculate the market size variance.(d) Calculate the market share variance.(e) Identify several factors that could have caused the variance identified in (d). 11.21 Direct labour variances Following is information about Pine Furniture's direct labour hours and wages last period.Required(a) Calculate the direct labour efficiency variance.(b) Calculate the direct labour price variance.11.22 Direct material variances The Neon Manufacturing Company is a joint venture between Australian and Chinese firms with an assembly plant located in Beijing. The company's managers expected to produce 20 000 units of product in March. The standard cost for the materials used for 20 000 units is 173 600 yuan, and the standard cost per unit is 2.80 yuan per kilogram. Actual production in March was 19 100 units. The company purchased and used 57 300 kilograms of materials costing 163 305 yuan.Required(a) What was the standard quantity of kilograms per unit?(b) What was the direct materials efficiency variance for March?(c) What was the direct materials price variance for March?11.32 Revenue variances Consider the following information for Morgan's Cheese and Butter Division.

11.21 Direct labour variances Following is information about Pine Furniture's direct labour hours and wages last period. Actual labour hours at the standard price per hour 1680 Actual labour hours at the actual price per hour 1752 Standard labour hours at the standard price per hour 1750 Standard labour hours at the actual price per hour 1825 Required (a) Calculate the direct labour efficiency variance. (b) Calculate the direct labour price variance