Deductions & credits

Thanks very much @LenaH - I proceeded as you laid out.  TT seemed to prompt me to also amend my Michigan State return, but I don't believe I need to amend my state return? 

 

Also, TT calculated amended difference between original return and amended return of $142.  Shouldn't the difference be $600 (we donated more than $600 to charity in cash total in 2021)?