-37.71% is the change from 822 to 512
Calculation steps:
[( 512 - 822 ) ÷ 822] x 100 = -37.71%
Formula
Percentage change = [(512 - 822) / 822] x 100
Subtract the new number by the original number
512 - 822 = -310
-310 ÷ 822 = -0.3771289537712895
-0.3771289537712895 x 100 = -37.71%