Costs [LO6-1, LO6-4] Miller Company's contribution format income statement for the most recent month is shown below: Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 13% ? 2. What is the revised net operating income if the selling price decreases by $1.30 per unit and the number of units sold increases by 19% ? 3. What is the revised net operating income if the selling price increases by $1.30 per unit, fixed expenses increase by $6,000. and the number of units sold decreases by 3% ? 4. What is the revised net operating income if the selling price per unit increases by 20%, variable expenses increase by 20 cents per unit, and the number of units sold decreases by 6% ? \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}