A tile manufacturer has supplied the following data: Boxes of tiles produced and sold 598,000 Sales revenue $ 4,006,600 Variable manufacturing expense $ 2,242,500 Fixed manufacturing expense $ 807,300 Variable selling and administrative expense $ 179,400 Fixed selling and administrative expense $ 149,500 Net operating income $ 627,900 If the company increases its unit sales volume by 6% without increasing its fixed expenses, then total net operating income should be closest to: