79.92% is the change from 254 to 457
Calculation steps:
[( 457 - 254 ) ÷ 254] x 100 = 79.92%
Formula
Percentage change = [(457 - 254) / 254] x 100
Subtract the new number by the original number
457 - 254 = 203
203 ÷ 254 = 0.7992125984251969
0.7992125984251969 x 100 = 79.92%