109.68% is the change from 217 to 455
Calculation steps:
[( 455 - 217 ) ÷ 217] x 100 = 109.68%
Formula
Percentage change = [(455 - 217) / 217] x 100
Subtract the new number by the original number
455 - 217 = 238
238 ÷ 217 = 1.096774193548387
1.096774193548387 x 100 = 109.68%