-54.41% is the change from 691 to 315
Calculation steps:
[( 315 - 691 ) ÷ 691] x 100 = -54.41%
Formula
Percentage change = [(315 - 691) / 691] x 100
Subtract the new number by the original number
315 - 691 = -376
-376 ÷ 691 = -0.5441389290882779
-0.5441389290882779 x 100 = -54.41%