The Oregon Tax Kicker 2023 grequires reporting my portion of 2022 AGI?

Hello.  Trying to calculate my OREGON state kicker refund and TurboTax 2023 is asking for my portion of my 2022 AGI.  I filed JOINTLY in 2022 but am no longer married and filing SINGLE for 2023.  

I have no idea how to calculate or find my portion of AGI...

Thanks in advance.