Assume that the Castle Corporation's manufacturing facility actually incurred $2,981,000 of manufacturing overhead for the year. Total fixed manufacturing overhead was budgeted at S3,020,000. Using a standard costing system, the company allocated $2,940,000 of fixed manufacturing overhead to production Re Requirements Re positive ld nur 1. Calculate the total fixed manufacturing overhead variance. What does this tell managers? 2. Determine the fixed overhead budget variance. What does this tell managers? 3. Determine the fixed overhead volume variance. What does this tell managers? 4. Double check: Do the two variances (computed in Requirements 2 and 3) sum d overhead e variance to the total overhead variance computed in Requirement 1