Answer:
%
Explanation:
Okay, so percent error is how we determine the margin of differentiation or in simple terms, the percent of the difference between two numbers. The equation is as follows:

So, here we know that our Accurate Amount is $180 since that is the price of the phone. Our given amount is $108 dollars, so our steps would look like this:

I would be happy to help you again in the future and hope that this provided you with some clarification. Have a good day! :D