Percentage calculations are commonly used when determining tips for restaurant bills and other services.
How to Calculate a Tip
Suppose your bill is $80 and you want to leave a 15% tip.
Calculate:
80 × 0.15 = 12
The tip is $12.
Your total payment would be:
80 + 12 = $92
Another Example
For a $150 bill with a 20% tip:
150 × 0.20 = 30
Tip = $30
Total = $180
You can use the Percentage Calculator to calculate the percentage portion of a bill.
How to Find What Percentage You Tipped
If you know the bill and tip amount:
Tip Percentage = (Tip ÷ Bill Amount) × 100
For example:
$18 tip on a $120 bill:
(18 ÷ 120) × 100 = 15%
The tip equals 15% of the bill.
Tipping customs vary considerably by country and situation, so the appropriate percentage depends on local practices.