Schister Systems uses the following data in its Cost-Volume-Profit analyses: Sales Variable expenses Contribution margin Fixed expenses Net operating income Total $330,000 198,000 132,000 106,000 26,000 What is total contribution margin if sales volume increases by 40%? aacom hik.co. O Ask.com Help units and its break even s ales are 10,/425 unts The margin of safety as a percentage of sales is closest to Mcmurty Corporetion selis a product for $280 per unit The prodats curent saes re 13,900 u