Don't enter any personal investment capital gain information here. This information should be pulled over from the federal information you've entered.
A subtraction for net long-term capital gain is computed on line 23 of your Arizona Form 140. A subtraction for net capital gain derived from investment in qualified small business is taken on line 24. These are different things, so you don't want to enter information that doesn't apply.
The form and instructions can be found at Form 140 - Arizona Resident Personal Income Tax Booklet, if you want to see them.
