-49.35% is the change from 691 to 350
Calculation steps:
[( 350 - 691 ) ÷ 691] x 100 = -49.35%
Formula
Percentage change = [(350 - 691) / 691] x 100
Subtract the new number by the original number
350 - 691 = -341
-341 ÷ 691 = -0.4934876989869754
-0.4934876989869754 x 100 = -49.35%