It would depend on what the amount you were being charged in the first place was. You would be paying 18c in a tip for each dollar of the original charge.
Multiply the check by 0.18
To calculate a 20 percent tip, you multiply the total amount of your bill by 0.20. For example, if your bill is $50, a 20 percent tip would be $50 x 0.20 = $10. So, you would add $10 to your total bill to account for the tip.
quick way to estimate a 10 percent tip is to remove the ones digit.Example: to give 10% tip for 50 = 510% tip for 500 = 50
18 million dollars
$3.78
Multiply the check by 0.18
Three dollars and eighty six cents.
$138.20
18% of 88 is 15.84
15-20 percent is the standard tip for services rendered.
10.80
2.40
3.03
$12.80
the answer is 48
3.75
$10.40