Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 17% ? 2. 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 25%? 3. What is the revised net operating income if the selling price increases by $1.20 per unit, fixed expenses increase by $10,000, and the number of units sold decreases by 7% ? 4. What is the revised net operating income if the selling price per unit increases by 10%, variable expenses increase by 30 cents per unit, and the number of units sold decreases by 11% ? \begin{tabular}{|l|} \hline 1. Net operating income \\ \hline 2. Net operating income \\ \hline 3. Net operating income \\ \hline 4. Net operating income \\ \hline \end{tabular}