-50.22% is the change from 691 to 344
Calculation steps:
[( 344 - 691 ) ÷ 691] x 100 = -50.22%
Formula
Percentage change = [(344 - 691) / 691] x 100
Subtract the new number by the original number
344 - 691 = -347
-347 ÷ 691 = -0.5021707670043415
-0.5021707670043415 x 100 = -50.22%