Lyndon's employer withheld $8,700 in state income taxes from Lyndon's wages in 2022. Lyndon obtained a refund of $1,700 this year for overpayment of state income taxes for 2021. State income taxes were an itemized deduction on his 2021 return. His 2022 liability for state income tax is $8,500. Indicate the amount of Lyndon's deduction for state income taxes on his federal tax return assuming he elects to deduct state income taxes for 2022.