-34.26% is the change from 686 to 451
Calculation steps:
[( 451 - 686 ) ÷ 686] x 100 = -34.26%
Formula
Percentage change = [(451 - 686) / 686] x 100
Subtract the new number by the original number
451 - 686 = -235
-235 ÷ 686 = -0.3425655976676385
-0.3425655976676385 x 100 = -34.26%