The next two questions are based on the following: Crawford Company's standard fixed overhead cost is $6 per direct labor hour based on budgeted fixed costs of $600,000. The standard allows one direct labor hour per unit. During 2006, Crawford produced 110,000 units of product, incurred $630,000 of fixed overhead costs, and recorded 212,000 actual hours of direct labor.

10a. What is Crawford's fixed overhead spending variance for 2011? (Ans: $30,000 U)

10b. What is Crawford's fixed overhead volume variance for 2011? (Ans: $60,000 F)

I know the answer I just need step-by-step instructions.