79.13% is the change from 254 to 455
Calculation steps:
[( 455 - 254 ) ÷ 254] x 100 = 79.13%
Formula
Percentage change = [(455 - 254) / 254] x 100
Subtract the new number by the original number
455 - 254 = 201
201 ÷ 254 = 0.7913385826771654
0.7913385826771654 x 100 = 79.13%