Taxes on 1099 misc income

I received an outstanding service award (cash) from a foundation associated with my employer.  The foundation issued a 1099-MISC for the $2500.  When I enter that into TT Premier as "other income" it shows up properly on line 21 of the 1040.  My question is how TT calculates taxes on the $2500.  After entering the $2500 TT says I owe an additional $625 if federal taxes and $200 in state taxes.  That is 33% of the award.

1.  Is that right?

2. Where in "forms" view can I see the calculations of the taxes?