-90.16% is the change from 691 to 68
Calculation steps:
[( 68 - 691 ) ÷ 691] x 100 = -90.16%
Formula
Percentage change = [(68 - 691) / 691] x 100
Subtract the new number by the original number
68 - 691 = -623
-623 ÷ 691 = -0.9015918958031838
-0.9015918958031838 x 100 = -90.16%