51.21% is the change from 453 to 685
Calculation steps:
[( 685 - 453 ) ÷ 453] x 100 = 51.21%
Formula
Percentage change = [(685 - 453) / 453] x 100
Subtract the new number by the original number
685 - 453 = 232
232 ÷ 453 = 0.5121412803532008
0.5121412803532008 x 100 = 51.21%