Diego and his friends went out for burgers after school. Two weeks ago, the burger cost $6. This week the burger costs $5. What is the percent change?

Answer 1

To find the percent change from the old price to the new price, you can use the formula:

\[ \text{Percent Change} = \frac{\text{New Price} - \text{Old Price}}{\text{Old Price}} \times 100% \]

In this case, the old price is $6 and the new price is $5. Plugging in these values, we have:

\[ \text{Percent Change} = \frac{5 - 6}{6} \times 100% \] \[ = \frac{-1}{6} \times 100% \] \[ = -\frac{100}{6} % \] \[ = -16.67% \]

The negative sign indicates a decrease in price. Therefore, the percent change is approximately -16.67%.