Your NY income allocation percentage is being shown at 28%.
For part year residents and nonresidents, NY calculates tax liability as if you were a NY resident for the full year. The income shown as "NY taxable income" is your full income. When you get to the tax summary screen in TurboTax, that's what you are seeing.
After calculating the tax liability, NY then applies the income allocation percentage to prorate the tax based on how much income you earned in the state compared to overall. In your case, your tax liability is prorated by the 28%.
This is different than how some other states, such as California, calculate tax liability only on the income that you earned within that state.
