-97.11% is the change from 691 to 20
Calculation steps:
[( 20 - 691 ) ÷ 691] x 100 = -97.11%
Formula
Percentage change = [(20 - 691) / 691] x 100
Subtract the new number by the original number
20 - 691 = -671
-671 ÷ 691 = -0.9710564399421129
-0.9710564399421129 x 100 = -97.11%