Yu Yan planned to buy a new truck. She expected to pay $25,500. She negotiated the price so that she final cost was $21,800. Calculate the percent error. 17%, 14.5%,-17%, 0.1697%

To find the percent error, we need to calculate the difference between the expected cost and the final cost, divide it by the expected cost, and then multiply by 100 to get the percentage.

The difference between the expected cost and the final cost is $25,500 - $21,800 = $3700.

Next, divide the difference by the expected cost: $3700 / $25,500 = 0.1447.

Finally, multiply the result by 100 to get the percentage: 0.1447 * 100 = 14.47%.

Rounding to the nearest tenth, the percent error is 14.5%.