Degree of operating leverage Grey Products has fixed operating costs of $$390,000,$ variable operating costs of $$15\mathrm{.}24$ per unit, and a selling price of $$63\mathrm{.}57$ per unit.

a$.$ The operating break$-$even point is units. $($Round to the nearest integer.$)$

b$.$ The EBIT for the $9,000$ units level is $$,.($Round to the nearest dollar.$)$

The EBIT for the $11,000$ units level is $$.($Round to the nearest dollar.$)$

The EBIT for the $13,000$ units level is $$.($Round to the nearest dollar.$)$

c$.$ With $11,000$ units as a base, the change in sales as a percentage for the $9,000$ units level is $\%.($Round to one decimal place.$)$

With $11,000$ units as a base, the change in sales as a percentage for the $13,000$ units level is $,\%.($Round to one decimal place.$)$

With $11,000$ units as a base, the change in EBIT as a percentage for the $9,000$ units level is $\%.($Round to one decimal place.$)$

With $11,000$ units as a base, the change in EBIT as a percentage for the $13,000$ units level is $\%.($Round to one decimal place.$)$

d$.$ The degree of operating leverage for the $9,000$ units level is $.($Round to one decimal place.$)$

The degree of operating leverage for the $13,000$ units level is $($Round to one decimal place.$)$

e$.$ The degree of operating leverage for the $11,000$ units level is $($Round to one decimal place.$)$