How do I find the percent of change

How do I find the percent of change from 36 inches to 90 inches?

[(90 - 36) / 36]*100

(54 / 36)*100

(3/2)*100

= 150%

Percent Change = (change)/(original value) * 100%
= (final value - original value)/(original value) * 100%
= [(final value)/(original value) - 1] * 100%

Percent change = [(90/36) - 1]*100% = 150%