When you started the amended return didn’t the monitors at top reset to zero? It should automatically include the tax due from the original return.
Look at the amended 1040X. The amended 1040X return is only for the difference you get back or owe. I think the cover sheet shows what the original return WOULD have been if you did it right the first time. Ignore the new 1040 that might print out.
Go by the actual 1040X. Line 18 should be your original refund amount and line 22 should be your additional refund. If you paid on your original return it will be on line 16. If there is an amount owed with the amendment, it will be on line 20.
