The Chair Company manufactures two modular types of chairs, one for the residential market, and the other for the office market. Budgeted and actual operating data for the year 2018 are:

Static Budget
		Residential		Office		Total
Number of Chairs sold		260		140		400
Contribution margin		$26,000		$11,200		$37,200
Actual Results
		Residential		Office		Total
Number of Chairs sold		252		168		420
Contribution margin		$22,356		$13,248		$35,604

Required (10 points):

1. Compute the total static budget variance, the total flexible-budget variance and the total sales-volume variance.
2. Compute the sales-mix variance and the sales-quantity variance.