Static Budget	Victor	House-mate	Total
Number sold	6,000	24,000	30,000
Contribution margin	$ 1,560,000	$ 3,120,000	$ 4,680,000
Actual Results	Victor	House-mate	Total
Number sold	5,000	35,000	40,000
Contribution margin	$ 1,400,000	$ 4,130,000	$ 5,530,000
What is the total sales-quantity variance in terms of the contribution margin?
a)$1,560,000 favorable
b)$960,000 unfavorable
c)$540,000 favorable
d) $200,000 unfavorable