overdue margin

there are 3 (AEP,HETCO, and Phibro). The first number is the amount originally called for, and the second is what the call should be today based on last night's marks. I have also attached a spreadsheet with the same data.

All numbers in millions:

AEP 19.25 22.5
Phibro 16 16
HETCO 17.25 9.5

Thanks,
Tanya