-80.47% is the change from 686 to 134
Calculation steps:
[( 134 - 686 ) ÷ 686] x 100 = -80.47%
Formula
Percentage change = [(134 - 686) / 686] x 100
Subtract the new number by the original number
134 - 686 = -552
-552 ÷ 686 = -0.8046647230320699
-0.8046647230320699 x 100 = -80.47%