Answer:
8,450 Favorable ; 3,206 Unfavorable
Explanation:
Variable overhead spending variance:
= (Standard rate - Actual rate) × Actual hours
= ($3 × 18,731) - $47,743
= 8,450 Favorable
Variable overhead efficiency variance:
= (Standard hour - Actual hour) × Standard rate
= [(11,620 × 1.52) - 18,731] × $3
= (-1,068.6) × $3
= 3,206 Unfavorable