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$)$:

Sales $ $65,000$

Variable expenses $45,500$

Contribution margin $19,500$

Fixed expenses $14,040$

Net operating income $ $5,460$

$7.$ If the variable cost per unit increases by $$1,$ spending on advertising increases by $$1,550,$ and unit sales increase by $210$ units, what would be the net operating income?

Note: Round "Per Unit" calculations to $2$ decimal places.