Assume the sales volume increases by 3,840 units: What is the revised net operating income? What is the percent increase in unit sales? Using the most recent months degree of operating leverage, what is the percent increase in net operating income? What is the revised net operating income if the selling price decreases by $1.20 per unit and the number of units sold increases by 19%? What is the revised net operating income if the selling price increases by $1.20 per unit, fixed expenses increase by $6,000, and the number of units sold decreases by 3%? What is the revised net operating income if the selling price per unit increases by 20%, variable expenses increase by 20 cents per unit