A researcher estimates that a fossil is 3200 years old. Using carbon-14 dating, a procedure used to determine the age of an object, the researcher discovers that the fossil is 3600 years old. a. Find the percent error.

$11.\overline{1}\%$11.1%​

$12.5\%$12.5%​

$88.\overline{8}\%$88.8%​

$112.5\%$112.5%​
Question 2
b. What other estimate gives the same percent error?