Ruby Company produces a chair that requires 3 yards of material per unit. The standard price of one yard of material is $10.60. During the month, 4,600 chairs were manufactured, using 14,100 yards at a cost of $11.13 per yard. Enter favorable variances as negative numbers.

(a)	Determine the price variance.	$	Favorable
(b)	Determine the quantity variance.	$	Unfavorable
(c)	Determine the cost variance.	$	Favorable