At the beginning of the accounting period, nutrition incorporated estimated that total fixed overhead cost would be $50,600 and that sales volume would be 10,000 units. at the end of the accounting period actual fixed overhead was $56,100 and actual sales volume was 11,000 units. nutrition uses a predetermined overhead rate and a cost plus pricing model to establish its sales price. based on this information the overhead spending variance is multiple choice $5,500 favorable. $440 favorable. $5,500 unfavorable. $440 unfavorable.