Question

9 is what percent of 84?

Answer 1

10.71% is 9% of 84.
So 10.71% is the answer.

Answer 2

$\frac{Current-value-of-x}{Original-value-x} * 100% = percentage of a value of x$
(9/84)*100% = 10.714286%
 Which is about approximately, 10.71%