Tax Year Prior to 2020: How much did they take out in taxes from my 1099-misc?

[KarenL2]

Generally, it is 15.3% of your  "net" taxable self-employment income for the self-employment tax portion.  Plus, your ordinary income tax rate.  You can look up that rate on the charts for your annual total taxable income. Then, add those to tax amounts together.  Please see this link for 2016 tax brackets as there is an easy to read chart on that page.