I have earned 2200$ on a website. How much will I have to pay in taxes in Pennsylvania next year

[re2boys]

PA has a flat income tax rate.  All income, unless exempt, is taxed at a 3.07% rate.

If the $2200 was earned income, it will also be subject to your local municipality's earned income tax.  This can range from 0% to about 3.5% depending on where you live.

Of course, federal tax rates are computed on your total income and different rates apply  to different types of income.