“Total of your other taxable income and losses” on Form ES & W4 Wks

I want to know exactly what numbers Turbo Tax uses to calculate the value provided on the Form ES & W4 Wks for the entry “Total of your other taxable income and losses”.  I am trying to replicate this calculation with my numbers so that I understand how to estimate the matching number for my 2020 estimate.   My numbers do not match the Turbo Tax number.

 

Please provide details or a link to a Form.