The following direct materials and direct labor data pertain to the operations of Laurel Company for the month of August. Costs Actual labor rate $14 per hour Actual materials price $260 per ton Standard labor rate $13.50 per hour Standard materials price $262 per ton Quantities Actual hours incurred and used 4,600 hours Actual quantity of materials purchased and used 1,800 tons Standard hours used 4,640 hours Standard quantity of materials used 1,780 tons (a) Compute the total, price, and quantity variances for materials and labor.