Deductions & credits

BUT, when you input the $600, the system defaults to the standard deduction - $25,700, and the refund amount goes down.  Do you have to input the $600?  Does it matter that more than $600 is already included in my itemized charitable contributions? 

Also, the system now shows $25, 700 as the "standard deduction."  This could be misleading to some.

Please advise.