how many max uplink rates are there in PMP system?

when I have a wireless plan: In PMP system,I need 500kbps of uplink rates each SM. How many SMs can I use?and when I set downlink percentage is 10%, how many is total uplink rates?

When you set Downlink Percentage to 10% you will get @2 miles distance this figures:

3 data slots down
28 slots up

DL Rate .610713 Mbps
UL Rate 2.478796 Mbps