-99.42% is the change from 691 to 4
Calculation steps:
[( 4 - 691 ) ÷ 691] x 100 = -99.42%
Formula
Percentage change = [(4 - 691) / 691] x 100
Subtract the new number by the original number
4 - 691 = -687
-687 ÷ 691 = -0.9942112879884226
-0.9942112879884226 x 100 = -99.42%