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 5500 39,000 44,500 Contribution margin $1,400,000 $4,130,000 $5,530,000 What is the total sales-mix variance in terms of the contribution margin? (Round any intermediary calculations two decimal places. ) A) $613,600 unfavorable B) $925,600 unfavorable C) $1,237,600 favorable D) $312,000 favorable