Answer and Explanation:
The computation is shown below;
a. Raw material price variance is
= (standard price - actual price) × actual quantity
= ($10 - $11) × ($69,300 ÷ $11)
= ($10 - $11) × 6,300
= $6,300 unfavorable
b. The raw material usage variance is
= (Standard quantity - actual quantity) × standard price
= (525 × 13 - 6,300) × $10
= $5,250 favorable
In this way it should be calculated