Russell Preston delivers parts for several local auto parts stores. He charges clients 0.70 per mile driven. Russell has determined that if he drives 3,600 miles in a month, his average operating cost is $0.55 per mile. If he drives 5,600 miles in a month, his average operating cost is $0.50 per mile. Russell has used the high-low method to determine that his monthly cost equation is: total cost-$580.00$0.41 per mile. Required 1. Determine how many miles Russell needs to drive to break even Break-Even Miles Miles 2. Assume Russell drove 2,500 miles last month. Without making any additional calculations, determine whether he earned a profit or a loss last month Profit O Loss 3. Determine how many miles Russell must drive to earn $870.00 in profit arget Miles Miles 4-a. Prepare a contribution margin income statement assuming Russell drove 2,500 miles last month. (Enter your answers rounded to 2 decimal places.) RUSSELL PRESTON Contribution Margin Income Statement For Last Month Contribution Margin Income from Operations 4-b. Use the above information to calculate Russell's degree of operating leverage. (Round your answer to the 2 decimal places.) Degree of Operating