Answer:
Rounded to the nearest percent, the percentage gratuity paid is 19%.
Explanation:
To calculate the percentage gratuity paid, we need to find the difference between the total amount paid and the original bill amount, and then express it as a percentage of the original bill.
Given that the bill amount is $68 (including tax) and you paid $81, we can find the difference between the two amounts:
$81 - $68 = $13
The difference of $13 represents the gratuity paid.
To express this gratuity as a percentage of the original bill, we can use the formula:
(Gratuity / Original bill amount) x 100
($13 / $68) x 100 = 19.12%
Rounded to the nearest percent, the percentage gratuity paid is 19%.