Susan works 2 * 5 = <<2*5=10>>10 days in two weeks.
She is taking 10 - 6 = <<10-6=4>>4 days of unpaid vacation.
At $15 per hour, she is paid 15 * 8 = $<<15*8=120>>120 per day.
At $120 per day, Susan will miss 120 * 4 = $<<120*4=480>>480 on her vacation.
#### 480