Deductions & credits

Thank you for the reply, but the screen shot has little to do with my problem.  The calculation done by the program is wrong.  Last year's return calculated the lines correctly, based on the percentage on line 41(3.1747%); this year's, with same data in lines 37-41, has totally screwed it up.  3.1747% times 15.931 on line 40 can not be 10, 334 on line 42!  I can not file a tax return with this ridiculous number.  Why can't I change the amount on the form itself?