Chart Axis Labels

Is there a way to format numerics like this:
Instead of this:
10,000,000,000
9,000,000,000
8,000,000,000
I would like this:
10B
9B
8B
Or Instead of this:
2,000,000
1,500,000
1,000,000
500,000
I would like this:
2M
1.5M
500k
Is this possible with the charting object? I am quite familiar with
the formatting codes but have never run across something like this.
Thank you in advance for your help.Does anyone know is this is possible?