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Required information

The Foundational $15($Algo$)[$LO$5-1,$ LO$5-3,$ LO$5-4,$ LO$5-5,$ LO$5-6,$ LO$5-7,$ LO$5-8]$

$[$The following information applies to the questions displayed below.$]$

Oslo Company prepared the following contribution format income statement based on a sales volume of $1,000$ units $($the relevant range of production is $500$ units to $1,500$ units$)$:

Foundational $5-15($Algo$)$

$15.$ Assume that the amounts of the company's total variable expenses and total fixed expenses were reversed. In other words, assume that the total variable expenses are $$7,830$ and the total fixed expenses are $$16,500.$ Using the degree of operating leverage, what is the estimated percent increase in net operating income of a $5\%$ increase in unit sales? $($Round your intermediate calculations and final answer to $2$ decimal places.$)$

Increase in net operating income

$\%$