-96.97% is the change from 692 to 21
Calculation steps:
[( 21 - 692 ) ÷ 692] x 100 = -96.97%
Formula
Percentage change = [(21 - 692) / 692] x 100
Subtract the new number by the original number
21 - 692 = -671
-671 ÷ 692 = -0.9696531791907514
-0.9696531791907514 x 100 = -96.97%