This document provides information and formulas for calculating different types of variances, including material, direct labor, and variable overhead variances. It explains how to calculate price and quantity variances for materials, as well as rate and efficiency variances for direct labor and variable overhead. Formulas are given for each variance, and examples are worked through step-by-step to demonstrate how to calculate variances for different companies and time periods. The document aims to teach the concepts and calculations involved in variance analysis.