The master budget at Monroe Manufacturing last period called for sales of 42,100 units at $43 each. The costs were estimated to be $27 variable per unit and $525,000 fixed. During the period, actual production and actual sales were 45,100 units. The selling price was $42 per unit. Variable costs were $29 per unit. Actual fixed costs were $516,000.

Required:

Prepare a sales activity variance analysis.