Your company's standard costs to make 1 pair of shoes include (20 points): 1 square yard of leather at $4 per square yard 1 hour of labor at $20 per hour. Your company actually produces 1000 pairs of shoes using: 1200 square yards of leather at a cost of $4680 800 hours of labor at a cost of $19,200 Given: Usage variance = delta units used standard unit cost Cost variance = delta unit cost * actual quantity used . . Show your calculations and circle fav or unfavorable A. What is the total labor variance? $ (fav or unfavorable) B. What is the labor usage variance? $ (fav or unfavorable) C. What is the labor cost variance? $ (fay or unfavorable) D. What is the total material variance? $ (fav or unfavorable) E. What is the material usage variance? $ (fav or unfavorable) F. What is the material cost variance? S (fav or unfavorable)