100% is the change from 454 to 908
Calculation steps:
[( 908 - 454 ) ÷ 454] x 100 = 100%
Formula
Percentage change = [(908 - 454) / 454] x 100
Subtract the new number by the original number
908 - 454 = 454
454 ÷ 454 = 1
1 x 100 = 100%
Example