Whirly Corporation's contribution format income statement for the most recent month is shown below: Total $ 237,600 144,000 93,600 54,400 $ 39,200 Per Unit $ 33.00 20.00 $ 13.00 Sales (7,200 units) Variable expenses Contribution margin Fixed expenses Net operating income Required: (Consider each case independently): 1. What would be the revised net operating income per month if the sales volume increases by 80 units? 2. What would be the revised net operating income per month if the sales volume decreases by 80 units? 3. What would be the revised net operating income per month if the sales volume is 6,200 units? 1. Revised net operating income 2. Revised net operating income 3. Revised net operating income Lin Corporation has a single product whose selling price is $140 per unit and whose variable expense is $70 per unit. The company's monthly fixed expense is $32,350, Required: 1. Calculate the unit sales needed to attain a target profit of $7,900. (Do not round intermediate calculations.) 2. Calculate the dollar sales needed to attain a target profit of $8,500 (Round your intermediate calculations to the nearest whole number.) units 1. Units sales to attain target profit 2. Dollar sales to attain target profit