-95.04% is the change from 686 to 34
Calculation steps:
[( 34 - 686 ) ÷ 686] x 100 = -95.04%
Formula
Percentage change = [(34 - 686) / 686] x 100
Subtract the new number by the original number
34 - 686 = -652
-652 ÷ 686 = -0.9504373177842566
-0.9504373177842566 x 100 = -95.04%