The Corata Appliance Manufacturing Corporation manufactures two vacuum cleaners, the Standard and the Super. The following information was gathered about the two products: Super 700 Budgeted sales in units Budgeted selling price Budgeted contribution margin per unit Actual sales in units Actual selling price Standard 2.600 $600 $700 3.100 $650 $1,700 $1,060 1,600 $1,680 What is the total sales - mix variance in terms of the contribution margin? (Round intermediary calculations to two decimal places.) O A. $647,660 favorable O B. $427,700 favorable O C. $219,960 favorable OD. $1,075,360 favorable