Answer and Explanation:
The computation is shown below:
Total material cost variance
= (Standard quantity × standard price) - (actual quantity × actual price)
= (4,000 tiles × 2 pounds of material × $4) - (8,800 pounds × $35,640 ÷ 8,800 pounds)
= (8,000 pounds × $4) - ($8,800 pounds × $4.05)
= $3,640 unfavorable
For material price variance
= Actual Quantity × (Standard Price - Actual Price)
= 8,800 × ($4 - $4.05)
= $440 unfavorable
For material quantity variance
= Standard Price × (Standard Quantity - Actual Quantity)
= $4 × (8,000 pounds - 8,800 pounds)
= $3,200 unfavorable
The favorable variance is that in which the standard cost is more than the actual cost and the inverse goes to unfavorable variance