-76.09% is the change from 686 to 164
Calculation steps:
[( 164 - 686 ) ÷ 686] x 100 = -76.09%
Formula
Percentage change = [(164 - 686) / 686] x 100
Subtract the new number by the original number
164 - 686 = -522
-522 ÷ 686 = -0.760932944606414
-0.760932944606414 x 100 = -76.09%