What is the materials price variance for the month?

A) $480 F.
B) $430 F.
C) $480 U.
D) $430 U.

Materials price variance is calculated as (Actual Price - Standard Price) * Actual Quantity Purchased. The standard price is $13.20 per gram, and the actual cost of materials purchased is $62,880 for 4,800 grams, resulting in an actual price of $62,880 / 4,800 = $13.10 per gram. The variance is ($13.10 - $13.20) * 4,800 = -$0.10 * 4,800 = -$480, indicating a $480 favorable variance since the actual price is less than the standard price.