Sinclair Manufacturing and Boswell Brothers Incorporated are both involved in the production of brick for the homebuilding industry. Their financial information is as follows:

The variable costs for Sinclair are $$12$ per unit compared to $$6$ per unit for Boswell.

a$.$ If you combine Sinclair's capital structure with Boswell's operating plan, what is the degree of combined leverage?

Note: Round your answer to $2$ decimal places.

Degree of combined leverage $,3\mathrm{.}80$

b$.$ If you combine Boswell's capital structure with Sinclair's operating plan, what is the degree of combined leverage?

Note: Round your answer to the nearest whole number.

Degree of combined leverage $$

c$.$ In part $b,$ if sales double, by what percentage will earnings per share $($EPS$)$ increase?

Note: Round your answer to the nearest whole percent.

$\backslash$table$[[$EPS will increase by$,\%$