The Fortise Corporation manufactures two types of vacuum cleaners, the Victor for commercial building use and the House - Mate for residences. Budgeted and actual operating data for the year 2017 were as follows: Static Budget Victor House-Mate Total Number sold 6,000 24,000 30,000 Contribution margin $1,560,000 $3,120,000 $4,680,000 Actual Results Victor House-Mate Total Number sold 5,300 35,000 40,300 Contribution margin $1,400,000 $4,130,000 $5,530,000 What is the total sales - quantity variance in terms of the contribution margin? (Round any intermediary calculations two decimal places.) O A. $1,606,800 favorable OB. $1,606,800 unfavorable OC. $1,071,200 unfavorable OD. $535,600 favorable