I need help with tax withholding and want to know if somebody could help me with it.
I just received my first weekly pay check (it had just 3 working days). I am an Indian national (been in US < 5 years) and working on OPT in California.
Here are the details:

Earnings: $587.50
Fed Withholding $63.22
Fed MED/EE $8.52
Fed OASD/EE $24.68
CA Withholding $14.19

Can somebody please tell me if these are the right amounts? If not, what can I do to correct it. Will I get refund later? Any help would be appreciated.