For consistent 15 percent tipsters living in municipalities with a 7.5 percent dining tax, generating the perfect 15 percent tip is as simple as doubling the tax. If that's not you, Oh Arithmetic-Challenged One, you've got a bum deal. (See below for a quick computational technique.)
It's for this set, and for diners who frequently split a bill, that Ilium Software developed Tipster. The free, simple app for Palm, Windows Mobile smartphone and Pocket PC hurriedly computes your tax and total.
Tipster calculates tax in 5 percent increments up to 30 percent, and can evenly split … Read more