# Yesterday you finished Level 4 of a video game in 45 minutes. Today you finished Level 4 in 30 minutes. What was your percent of change?

May 9, 2017

33.33%

#### Explanation:

Yesterday took 45 minutes and the same today takes 30 minutes.

Same way If yesterday took 100 minutes, today it takes 30/45 * 100 = 200/3 minutes.

Hence %age of change = 100 - 200/3 = 100/3 = 33.33%

May 9, 2017

=33.33% Faster

#### Explanation:

$\frac{45 - 30}{45} \times 100$

$= \frac{15}{45} \times 100$

$= \frac{1}{3} \times 100$

$= 33.33$