Maines and Company operate a standard costing system. For this period, they incurred $45,000 in variable manufacturing overhead. They apply overhead at the rate of $2.93 per labor hour, and expect to consume 1.5 hours per unit. They made 9,000 units this period and incurred 15,100 labor hours. What is their variable overhead spending variance? Enter favorable variances as a positive number and unfavorable variances as a negative number.