-27.35% is the change from 691 to 502
Calculation steps:
[( 502 - 691 ) ÷ 691] x 100 = -27.35%
Formula
Percentage change = [(502 - 691) / 691] x 100
Subtract the new number by the original number
502 - 691 = -189
-189 ÷ 691 = -0.2735166425470333
-0.2735166425470333 x 100 = -27.35%