-91.17% is the change from 691 to 61
Calculation steps:
[( 61 - 691 ) ÷ 691] x 100 = -91.17%
Formula
Percentage change = [(61 - 691) / 691] x 100
Subtract the new number by the original number
61 - 691 = -630
-630 ÷ 691 = -0.9117221418234442
-0.9117221418234442 x 100 = -91.17%