It costs charlie’s car repair shop $27 to change the oil. the shop charges their customers $40 for an oil change. what is the percent of markup in the cost of an oil change?

18.1%

Step-by-step explanation:

The markup is the difference that exists between the price that a product had and its "real" price as a percentage of the cost. This markup is what brings profit to a seller.

In this example the cost of changing the oil to the shop is $27. However, the oil change is sold to people at $40. This means that there is a difference of:

40 - 27 = 13

$13 represents 48.1% of $27, which means that the percent of markup is 48.1%

1. 34

2. 268

3. x=14.4

step-by-step explanation: