The Porter Company has a standard cost system. In July, the company purchased and used 22,700 kilograms of direct material at an actual cost of $55,000, the materials price standard was $2.00 per kilograms. What was the materials price variance for July? a. \$11,350 favourable b. $9,600 unfavourable c. $9,600 favourable d. $11,350 unfavourable