Calculations are giving an incorrect total

On my form to purchase advertising, on Pages 3 and 4 I have two multiple choice boxes each.  When items are selected they should automatically calculate to the Advertisement Total Fees on Page 6.  Unfortunately, it seems when selecting items from Page 4, the calculation is adding an additional $135.00 and I can't find why.

Can you help me?

I was able to reproduce the issue that you described when I test your form.

I have created a clone version of your form to investigate the issue and found a conflict. There is an additional abs() math function on your Advertisement Total Fee (Form Calculation widget)

Please remove that math function and let us know if that did not solve the issue still.