18 Seved Whirly Corporation's contribution format income statement for the most recent month is shown below: Sales (8,900 units) Total $311,500 Per Unit $35.00 Variable expenses 169,100 Contribution margin 142,400 19.00 $ 16.00 Fixed expenses 54,200 02:17:04 Net operating incone $ 88,200 Required: (Consider each case independently): 1. What would be the revised net operating income per month if the sales volume increases by 50 units? 2. What would be the revised net operating income per month if the sales volume decreases by 50 units? 3. What would be the revised net operating income per month if the sales volume is 7,900 units? 1. Revised net operating income 2. Revised net operating income 3. Revised net operating income 16:41 Seved Hol Chong Transport, Ltd., operates a fleet of delivery trucks in Singapore. The company has determined that if a truck is driven 105,000 kilometers during a year, the average operating cost is 11.4 cents per kilometer. If a truck is driven only 70,000 kilometers during a year, the average operating cost increases to 13.4 cents per kilometer. Required: 1. Using the high-low method, estimate the variable operating cost per kilometer and the annual fixed operating cost associated with the fleet of trucks. 2. Express the variable and fixed costs in the form Y=a+bX. 3. If a truck were driven 80,000 kilometers during a year, what total operating cost would you expect to be incurred? Complete this question by entering your answers in the tabs below. Required 1 Required 2 Required 3 Using the high-low method, estimate the variable operating cost per kilometer and the annual fixed operating cost associated with the fleet of trucks. (Do not round your intermediate calculations. Round the Variable cost per kilometer to 3 decimal places.) Variable cost Fixed cost per kilometer per year Help Sa