Miller Company's contribution format income statement for the most recent month is shown below:

What is the revised net operating income if unit sales increase by $19\%?$

What is the revised net operating income if the selling price decreases by $$1\mathrm{.}40$ per unit and the

number of units sold increases by $17\%?$

What is the revised net operating income if the selling price increases by $$1\mathrm{.}40$ per unit, fixed expenses

increase by $$9,000,$ and the number of units sold decreases by $5\%?$

What is the revised net operating income if the selling price per unit increases by $20\%,$ variable

expenses increase by $30$ cents per unit, and the number of units sold decreases by $15\%?$

Answer is complete but not entirely correct.