102.42% is the change from 455 to 921
Calculation steps:
[( 921 - 455 ) ÷ 455] x 100 = 102.42%
Formula
Percentage change = [(921 - 455) / 455] x 100
Subtract the new number by the original number
921 - 455 = 466
466 ÷ 455 = 1.024175824175824
1.024175824175824 x 100 = 102.42%