-80.32% is the change from 691 to 136
Calculation steps:
[( 136 - 691 ) ÷ 691] x 100 = -80.32%
Formula
Percentage change = [(136 - 691) / 691] x 100
Subtract the new number by the original number
136 - 691 = -555
-555 ÷ 691 = -0.8031837916063675
-0.8031837916063675 x 100 = -80.32%