i only need the one incprrect net operating income :)

Miller Company's contribution format income statement for the most fecent month is shown below: Required: (Consider each case independently): 1. What is the revised net operating income if unit sales increase by 12% ? 2. What is the revised net operating income if the selling price decreases by $1.20 per unt and the number of units sold increases by 15% ? 3. What is the revised net operating income if the selling price increoses by $1.20 per unit, fixed expenses increase by $8,000, and the number of units sold decreases by 5k ? 4. 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 10%