No assignment or within 5 minutes of posting - No Charge
>24 hours - No Charge
12-24 hours - 10% Charge
6-12 hours - 20% Charge
3-6 hours - 40% Charge
1-3 hours - 60% Charge
<1 hour before - 100% Charge if Stint is less than 4 hours long
<1 hour before - 85% Charge if Stint is longer than 4 hours