I could use some help on this question. I answered c. $560 unfavorable, but it was wrong. If someone could explain to me how to solve this, that would be great. Thank you.

The standard costs and actual costs for factory overhead for the manufacture of 3,000 units of actual production are as follows:

Standard Costs

Fixed overhead (based on 10,000 hours) 3 hours per unit at $0.70 per hour

Variable overhead 3 hours per unit at $2.06 per hour

Actual Costs

Total variable cost, $17,900

Total fixed cost, $8,000

The fixed factory overhead volume variance is

a.$560 favorable

b.$700 unfavorable

c.$560 unfavorable

d.$0