-85.82% is the change from 691 to 98
Calculation steps:
[( 98 - 691 ) ÷ 691] x 100 = -85.82%
Formula
Percentage change = [(98 - 691) / 691] x 100
Subtract the new number by the original number
98 - 691 = -593
-593 ÷ 691 = -0.8581765557163531
-0.8581765557163531 x 100 = -85.82%