-91.11% is the change from 686 to 61
Calculation steps:
[( 61 - 686 ) ÷ 686] x 100 = -91.11%
Formula
Percentage change = [(61 - 686) / 686] x 100
Subtract the new number by the original number
61 - 686 = -625
-625 ÷ 686 = -0.9110787172011662
-0.9110787172011662 x 100 = -91.11%