Material rate variance/material effiiceny variance/ labor rate variance/labor efficeny variance

Standard Costing Computations Adelphi Corporation make a product with the following standard costs: The company reported the following results concerning this product in December. The direct materials price variance is computed when the materials are purchased. Based on the above, calculate the four (material and labor) cost variances that we discussed under Standard Costing. Label each variance as either favorable or unfavorable