How much money is a 15 percent tip?

Answer 1

Ok look at it this way which I myself have learned.

10% of $100.00 = $10.00/tip. 10% of $1000.00 = $100/tip and so on.

Ok now add the 5% more on the 1st example of total order of $100.00 and you have $15.00 -equaling a 15% tip if a purchase was $100.00.

Hope this clarifies the solution. :)