50.66% is the change from 454 to 684
Calculation steps:
[( 684 - 454 ) ÷ 454] x 100 = 50.66%
Formula
Percentage change = [(684 - 454) / 454] x 100
Subtract the new number by the original number
684 - 454 = 230
230 ÷ 454 = 0.5066079295154186
0.5066079295154186 x 100 = 50.66%