37.8% is the change from 455 to 627
Calculation steps:
[( 627 - 455 ) ÷ 455] x 100 = 37.8%
Formula
Percentage change = [(627 - 455) / 455] x 100
Subtract the new number by the original number
627 - 455 = 172
172 ÷ 455 = 0.378021978021978
0.378021978021978 x 100 = 37.8%