-40.6% is the change from 862 to 512
Calculation steps:
[( 512 - 862 ) ÷ 862] x 100 = -40.6%
Formula
Percentage change = [(512 - 862) / 862] x 100
Subtract the new number by the original number
512 - 862 = -350
-350 ÷ 862 = -0.4060324825986079
-0.4060324825986079 x 100 = -40.6%