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 expenses45,500

Contribution margin19,500

Fixed expenses14,040

Net operating income$5,460

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?