throughput calculation for driver.

I am using a CAN (Controller area network) driver and I want to calculate the throughput for this driver.

I have the following informations:

Clock rate: 16MHz

Data rate: 1 Mbps

Baud Rte: 500Kbps

Packet size: 32 bytes

Now can anybody tell me that how can I calculate the throughput of driver using these information and what’s the formula for throughput calculation.