What Percentage did you tip if your lunch was $10 and you left $2

you are a great person you tiped 20%.

Answer: That's a 20% tip.

Step-by-step explanation:

First, let's turn the problem into a fraction in order to later divide the fraction to find the percentage. It would look like this:

$2/$10

Then remove the dollar signs:

2/10

Divide 2 by 10:

.2

Change to a percentage:

20%