I've received a 1099- G in the mail and Turbo Tax is asking for "total of all your payments and withholding", but I dont see a corresponding amount, what do I enter?

Based on my research, it says I need to look through last years 1040 and find the amount of payment and withholding but not sure which line to look for? I did Itemize and according to the 1040, I did use State/Local income tax paid.