$1.$ Assume the sales volume increases by $3,690$ units:

a$.$ What is the revised net operating income?

b$.$ What is the percent increase in unit sales?

c$.$ Using the most recent month's degree of operating leverage, what is the percent increase in net operating income?

$2.$ What is the revised net operating income if the selling price decreases by $ $1\mathrm{.}30$ per unit and the number of units sold increases by $16\%?$

$3.$ What is the revised net operating income if the selling price increases by $ $1\mathrm{.}30$ per unit, fixed expenses increase by $ $7,000,$ and the number of units sold decreases by $5\%?$

$4.$ 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 $12\%$Miller Company's contribution format income statement for the most recent month is shown below:

$\backslash$table$[[,$Total,Per Unit$],[$Sales units$),$$$147,600,$$$6\mathrm{.}00?$