If you have a calculator, multiply the bill amount by 0.15
If not:
Take the amount of the bill.
Move the decimal place one place to the left - that is 10%
Halve that number - that is 5%
Add the two together - and you've got 15%
Simplicity!
So, bill of 37.56
Step 1: 3.76
Step 2: 1.88
Step 3: 5.64
Chat with our AI personalities
$3.53
The tip would be 8.88 Divide the bill by 10 - giving 5.92. Divide that figure by 2 - giving 2.96 (this is 5% !) Add the two figures together, and the result is 15% of the bill.
6 dollars
15
38.40 x .15 = 5.76 so the total cost of the meal with tip is $44.16