This would be the calculation since you said that PA is your state:
Gross Pay – 50,000
Tax deferred retirement - -
Caferteria - -
Circumstance options – (10,400)
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Taxable income – 39,600
Federal Income Tax – 5,553.75
California State Income Tax – 1,535
Social Security – 3,100
Medicare tax – 725
Additional Medicare tax – 0
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Take home pay – 39,086.25
Deduct the gross pay to the take home pay, to know the amount of tax = 50,000 – 39,086.25
=10,913.75