How do you add 20% tip?

How to Calculate a 20% Tip

Calculating a 20% tip is a quick and simple process. Here’s how to do it:

1. Multiply the Pre-Tip Bill Amount by 1.20:

The easiest way to calculate a 20% tip is to multiply the total pre-tip bill amount by 1.20. This results in a value that includes both the original cost of the meal and the 20% tip.

For example, if your pre-tip bill is $50, you would calculate the tip as follows:

$50 x 1.20 = $60

Note: The number 1.20 is derived from the fact that 100% (original bill) + 20% (tip) = 120%.

2. Alternately, Multiply by 0.20 and Add to the Bill:

Another way to calculate a 20% tip is to multiply the pre-tip bill amount by 0.20 (or 20%) and then add the result to the original bill.

Using the same $50 bill from the previous example:

$50 x 0.20 = $10
$50 + $10 = $60

Both methods will give you the same result of $60, which is the total cost of your meal including the 20% tip.

Tips:

• For larger bills, you can use a calculator to ensure accuracy.
• If you want to calculate a tip percentage that is different from 20%, simply use the corresponding decimal value. For example, for a 15% tip, multiply by 1.15.
• It’s always considered polite to round up your tip to the nearest dollar or two, especially for smaller bills.