Marchman Corporation has provided its contribution format income statement for April.

Sales $1,703,000$

Variable Expenses $439,000$

Contribution Margin $1,264,000$

Fixed Expenses $1,129,400$

Net Operating Income $134,600$

If the company's sales increase by $10\%,$ its net operating income should increase by about:

A$)10\mathrm{.}00\%$

B$)10\mathrm{.}64\%$

C$)93\mathrm{.}90\%$

D$)34\mathrm{.}60\%$