-95.92% is the change from 686 to 28
Calculation steps:
[( 28 - 686 ) ÷ 686] x 100 = -95.92%
Formula
Percentage change = [(28 - 686) / 686] x 100
Subtract the new number by the original number
28 - 686 = -658
-658 ÷ 686 = -0.9591836734693877
-0.9591836734693877 x 100 = -95.92%