Can someone help me with this?

Cholla Company's standard fixed overhead rate is based on budgeted fixed manufacturing overhead of $11,200 and budgeted production of 31,000 units. Actual results for the month of October reveal that Cholla produced 30,000 units and spent $11,700 on fixed manufacturing overhead costs. Required: Calculate Cholla's fixed overhead spending variance. Note: Indicate the effect of each variance by selecting "F" for favorable, " U " for unfavorable, and "None" for no effect (i.e., zero variance)