Wilson Tech has sales of $15,000, fixed costs of $2,000, and a contribution margin ratio of 0.45. If sales change to $12,500, fixed costs change to $500, and the contribution margin ratio changes to 0.30, what is the change in contribution margin? Increase of $425. O Increase of $3,000. Decrease of $425. O Decrease of $3,000.

Wilson Tech has sales of $15,000, fixed costs of $2,000, and a contribution margin ratio of 0,45 , If sales change to $12,500, fixed costs change to $500, and the contribution margin ratio changes to 0.30 , what is the change in contribution margin? Increase of $425. Increase of $3,000. Decrease of $425. Decrease of $3,000