Miller Company's contribution format income statement for the most recent month is shown below: Required: (Consider each of the four requirements independently) 1. Assume the sales volume increases by 3,552 units: a. What is the revised net operating income? b. What is the percent increase in unit sales? c. Using the most recent month's degree of operating leverage, what is the percent increase in net operatin 2. What is the revised net operating income if the selling price decreases by $1.30 per unit and the number of u increases by 15% ? 3. What is the revised net operating income if the selling price increases by $1.30 per unit, fixed expenses increi and the number of units sold decreases by 6% ? 4. What is the revised net operating income if the selling price per unit increases by 10%, variable expenses incr cents per unit, and the number of units sold decreases by 12%