13. Determine and interpret the factory overhead volume variance. For those boxes in which you must enter subtractive or negative numbers use a minus sign. Enter a favorable variance as a negative number using a minus sign and an unfavorable variance as a positive number. Round rate to four decimal places and round your final answer to two decimal places. Factory Overhead Volume Variance Normal volume (cases) 1,600 Actual volume (cases) -1500 Difference 100 Fixed factory overhead rate Correct $ Factory overhead volume variance $ U Correct Points: 5 / 7 The volume variance indicates the cost of underused capacity Correct . Points: 1 / 1 14. Why are the standard direct labor and direct materials costs in the calculations for parts (10) and (11) based on the actual 1,500-case production volume rather than the planned 1,375 cases of production used in the budgets for parts (6) and (7)