Answer:
-15%
Step-by-step explanation:
The percent decrease can be calculated usinf the following formula:
[tex]\text{Percent decrease}=\dfrac{\text{New price}-\text{Original price}}{\text{Original price}}\cdot 100\%.[/tex]
Since the original price is 10,000 and the new price is 8,500, then the percent decrease is
[tex]\text{Percent decrease}=\dfrac{8,500-10,000}{10,000}\cdot 100\%=-\dfrac{1,500}{100}\%=-15\%.[/tex]
