-30.85% is the change from 992 to 686
Calculation steps:
[( 686 - 992 ) ÷ 992] x 100 = -30.85%
Formula
Percentage change = [(686 - 992) / 992] x 100
Subtract the new number by the original number
686 - 992 = -306
-306 ÷ 992 = -0.3084677419354839
-0.3084677419354839 x 100 = -30.85%