0 = 2500 24999 = 2500 25000 = 5000 49999 = 5000 50000 = 12500 149999 = 12500 150000 = 25000 224999 = 25000 225000 = 37500 299999 = 37500 300000 = 60000 599999 = 60000 600000 = 120000 1199999 = 120000 1200000 = 300000 3599999 = 300000 3600000 = 600000 5399999 = 600000 5400000 = 900000 10799999 = 900000 10800000 = 1800000 21599999 = 1800000 21600000 = 3600000