Overhead Variances, Four-Variance Analysis $555 , 850. Required: 1. Compute the fixed overhead spending and volume variances. FixedOverheadSpendingVariance FixedOverheadVolumeVariance ? $ $ ? X X ? ? ? ? 2. Compute the variable overhead spending and efficiency variances. Do not round intermediate calculations VariableOverheadSpendingVariance VariableOverheadEfficiencyVariance ? $ $ ? X X ? ? ? ? Feedback V Check My Work 1. The four-variance method calculates two variances for variable overhead and two variances for fixed overhead. 2. The four-variance method calculates two variances for variable overhead and two variances for fixed overhead