Silmon Corporation makes a product with the following standard costs: In June the company produced 4, 200 units using 15, 790 grams of the direct material and 2, 460 direct labor-hours. During the month the company purchased 24, 100 grams of the direct material at a price of $7.80 per gram. The actual direct labor rate was $15.60 per hour and the actual variable overhead rate was $1.90 per hour. The materials price variance is computed when materials are purchased. Variable overhead is applied on the basis of direct labor-hours. Compute the following variances for raw materials, direct labor, and variable overhead, assuming that the price variance for materials is recognized at point of purchase