All - Star, Inc. uses a standard cost system and provides the following information. (Click the icon to view the information.) hours, 1,300 . Read the requirements. Requirement 1. Compute the variable overhead cost and efficiency variances and fixed overhead cost and volume variances. quantity; FOH= fixed overhead; SC = standard cost; SQ = standard quantity; VOH= variable overhead.) All - Star, Inc. uses a standard cost system and provides the following information. (Click the icon to view the information.) hours, 1,300 . Read the requirements. Requirement 1. Compute the variable overhead cost and efficiency variances and fixed overhead cost and volume variances. quantity; FOH= fixed overhead; SC = standard cost; SQ = standard quantity; VOH= variable overhead.)