What is the stipend amount AFTER taxes?

Currently the living stipend is $2122/month. Assuming that the figure remains the same in the coming months, can someone please tell me what taxes are on it (federal/state and percentage)? I'd just like an estimate of what my living resources will be when I commission. I am a CA resident. Thank you.
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums