Wilma had $3,100 in state income taxes withheld from her paychecks during 2017. In April of 2017, Wilma paid $50 due on her 2016 state tax return. Wilma's total tax liability on her state tax return for 2017 is $2,850. How much should Wilma deduct as an itemized deduction for state income taxes on her 2017 federal income tax return?