Fran's Tire Company has seen an increase in calls recently. While they typically get 450,000 calls per year, in the past month they've received 50,000 calls. The average length of these phone calls has increased by 35% from the typical average of 110 seconds per call. If Fran's Tire Company pays a third party $21 per hour of customer calls they handle, how much did the increase in calls last month cost?