Brown manufactures a special helmet that requires a special plastic. During the year ending December 31, the company manufactured 80,000 helmets, using 45,000 kilograms of plastics. The actual plastic cost the company $480,000. According to the standard cost card, each helmet should require 0.8 kilograms of plastic, at a cost of $8 per kilogram.

(2). Breakdown the difference computed in (1) above into a materials price variance and a materials quantity variance.