Cholla Company's standard fixed overhead rate is based on budgeted fixed manufacturing overhead of $10,500 and budgeted production of 33,000 units. Actual results for the month of October reveal that Cholla produced 29,000 units and spent $10,800 on fixed manufacturing overhead costs. Calculate Cholla's fixed overhead spending variance. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance)