-46.15% is the change from 650 to 350
Calculation steps:
[( 350 - 650 ) ÷ 650] x 100 = -46.15%
Formula
Percentage change = [(350 - 650) / 650] x 100
Subtract the new number by the original number
350 - 650 = -300
-300 ÷ 650 = -0.46153846153846156
-0.46153846153846156 x 100 = -46.15%