can someone please help me out. looked eveywhere, found nothing... seems very simple for someone who knows a thing or two about acrobat... and javascript.

have a form that WE fill out, Quantity, Amount,.. and i would like it to automatically calculate gratuity (at 20%), sales tax (6.5%) make it visible on the form... and then subtotaled, and TOTAL...

can someone please help me out! i would GREATLY appreciate it!

thanks again
ps. this is my first post! be gentle!