A company's master budget for October is to manufacture and sell 30,100 units, for a total sales revenue of $272,000, total variable costs of $178,690, and total fixed costs of $24,200. The company actually manufactured and sold 32,100 units, and generated $46,000 of operating income in October.

The sales volume variance, in terms of operating income, for October (rounded to the nearest whole dollar) was: