-36.73% is the change from 686 to 434
Calculation steps:
[( 434 - 686 ) ÷ 686] x 100 = -36.73%
Formula
Percentage change = [(434 - 686) / 686] x 100
Subtract the new number by the original number
434 - 686 = -252
-252 ÷ 686 = -0.3673469387755102
-0.3673469387755102 x 100 = -36.73%