- 7,790
Mark. I've revised my plan. Show 10% and state "multipy by 2 for 20%" and "divide the 10% by 2 and add the result to the 10% for 15%." As Wino pointed out there are definite problems with a sales tax table. Here in PA it is 6% but in Philadelphia it is &%. SOLUTION: Get a cheap calculator and imprint your business card information on its cover. They will not throw it away! If they can't handle that, then they shouldn't eat out!