41.32% is the change from 455 to 643
Calculation steps:
[( 643 - 455 ) ÷ 455] x 100 = 41.32%
Formula
Percentage change = [(643 - 455) / 455] x 100
Subtract the new number by the original number
643 - 455 = 188
188 ÷ 455 = 0.41318681318681316
0.41318681318681316 x 100 = 41.32%