Santiago was out at a restaurant for dinner when the bill came. His dinner came to $13. After adding in a tip, before tax, he paid $16.64. Find the percent tip.

Answer 1

First, calculate the tip amount:

$16.64 - $13 = $3.64

Next, find the percentage of the tip:

Tip amount / Total bill = Percentage tip
$3.64 / $13 = 0.28

Convert the decimal to a percentage by multiplying by 100:

0.28 x 100 = 28%

Santiago left a 28% tip.