1 pts Inorde to odtemine the sales revenuelevel needed to reach a specific target operating income goal, it is necessary to add the targeted income amount to what other element before dividing the sum by contribution margin? OVaristle costs O Oinherdcosts O Fxxed costs O Contibution margin Questions 1 pts Inorde to odtemine the sales revenuelevel needed to reach a specific target operating income goal, it is necessary to add the targeted income amount to what other element before dividing the sum by contribution margin? OVaristle costs O Oinherdcosts O Fxxed costs O Contibution margin Questions