How do u do it I’m confused

Question

when Ethan was 9 years, he was 59 inches tall. Ethan is now 12 years old and he is 62 inches tall. determine the percent of the increase in Ethan’s height to the nearest tenth

Answer 1

Use the formula { (New - Original)/Original } x 100 to state it as a percentage

So, { (62 - 59)/59 } x 100 = 5.1%