-22% is the change from 691 to 539
Calculation steps:
[( 539 - 691 ) ÷ 691] x 100 = -22%
Formula
Percentage change = [(539 - 691) / 691] x 100
Subtract the new number by the original number
539 - 691 = -152
-152 ÷ 691 = -0.2199710564399421
-0.2199710564399421 x 100 = -22%