-88.71% is the change from 691 to 78
Calculation steps:
[( 78 - 691 ) ÷ 691] x 100 = -88.71%
Formula
Percentage change = [(78 - 691) / 691] x 100
Subtract the new number by the original number
78 - 691 = -613
-613 ÷ 691 = -0.8871201157742402
-0.8871201157742402 x 100 = -88.71%