-56.9% is the change from 812 to 350
Calculation steps:
[( 350 - 812 ) ÷ 812] x 100 = -56.9%
Formula
Percentage change = [(350 - 812) / 812] x 100
Subtract the new number by the original number
350 - 812 = -462
-462 ÷ 812 = -0.5689655172413793
-0.5689655172413793 x 100 = -56.9%