$100K is correct for Ohio.
Ohio does a convoluted tax calculation for non-residents/part year residents. It calculates tax on total income, then it calculates a non resident/part year resident credit, which it subtracts from the tax it calculated on the total income. The credit is calculated as your non-Ohio income divided by Total adjusted Income multiplied by the total tax. TurboTax (TT) does this by allocating your income as either Ohio or non-Ohio. W-2 income will be allocated by the state name abbreviation shown in box 15 of your W-2. TT will ask you, item by item, in the state section, how much of your other income is Ohio or non-Ohio income. Make sure that your non-Ohio wages show GA (Other state postal abbreviation) in box 15 of your W-2 screen, with the GA amount in box 16.
I can't speak specifically for how GA does it, but it is not unusual for other states to show all income and then do a percentage calculation for the actual taxable income.
