52.11% is the change from 451 to 686
Calculation steps:
[( 686 - 451 ) ÷ 451] x 100 = 52.11%
Formula
Percentage change = [(686 - 451) / 451] x 100
Subtract the new number by the original number
686 - 451 = 235
235 ÷ 451 = 0.5210643015521065
0.5210643015521065 x 100 = 52.11%