-80.46% is the change from 691 to 135
Calculation steps:
[( 135 - 691 ) ÷ 691] x 100 = -80.46%
Formula
Percentage change = [(135 - 691) / 691] x 100
Subtract the new number by the original number
135 - 691 = -556
-556 ÷ 691 = -0.804630969609262
-0.804630969609262 x 100 = -80.46%