-52.68% is the change from 691 to 327
Calculation steps:
[( 327 - 691 ) ÷ 691] x 100 = -52.68%
Formula
Percentage change = [(327 - 691) / 691] x 100
Subtract the new number by the original number
327 - 691 = -364
-364 ÷ 691 = -0.5267727930535456
-0.5267727930535456 x 100 = -52.68%