-37.76% is the change from 686 to 427
Calculation steps:
[( 427 - 686 ) ÷ 686] x 100 = -37.76%
Formula
Percentage change = [(427 - 686) / 686] x 100
Subtract the new number by the original number
427 - 686 = -259
-259 ÷ 686 = -0.37755102040816324
-0.37755102040816324 x 100 = -37.76%