Deductions & credits

When I click on the $$$ amount listed, TTX provides a breakdown like:

        Federal Withholding    $50,000

        State Withholding         $10,000

The State amount matches the sum of the 2 W2s I imported.

However, the Federal amount is $1,200 higher than the federal withholding from the 2 W2s.

There is no other Federal withholding that I can find.  Is there a way for me to determine where this extra amount comes from?  I did not enter any extra amounts in "Estimates" or "Other Income Taxes".

Again, this is regarding "FEDERAL TAXES"."Deductions & Credits"."Estimates and Other Taxes Paid"."Other Income Taxes".  Is this just a status amount from TTX and I can ignore it?  Thanks.