Answer and Explanation:
The computation is shown below;
1
Material price variance= (Standard Price-Actual Price) × Actual Qty
= (20.16 ÷ 3.2 - 84000 ÷ 14000) × 14000
= $4200 Favorable
Material Quantity variance= (Standard Qty -Actual Qty ) ×Standard Price
= (4000 ×3.2 - 14000) ×6.3
= $7560 Unfavorable
2
Labour rate variance= (Standard Rate-Actual Rate) ×Actual Hour
= (12870 ÷ 780-14000 ÷ 755) ×755
= $1542.50 Unfavorable
Labour efficiency variance= (Standard Hour -Actual Hour ) × Standard Rate
= (780 × 4000 ÷ 3900 - 755) × 16.50
= $742.50 Favorable
3
Variable Overhead rate variance= (Standard Rate-Actual Rate) × Actual Hour
= (2340 ÷ 780-7200 ÷ 755) × 755
= $4935 Unfavorable
Variable Overhead efficiency variance= (Standard Hour -Actual Hour ) × Standard Rate
= (780 × 4000 ÷ 3900 - 755) × 3
= $135 Favorable