Am I getting what I am paying for?
1 Meg on most of our technologies you should see a report of around 850
4 Meg on most of our technologies you should see a report of around 3500
10 Meg on most of our technologies you should see a report of around 8500

These numbers account for the overhead in the equipment at your residence and on our end:
including modems, routers, hubs, cabling, etc. The performance of your PC could also adversely affect this test.

Here is a link that explains IP/ATM overhead IP/ATM overhead