-39.68% is the change from 862 to 520
Calculation steps:
[( 520 - 862 ) ÷ 862] x 100 = -39.68%
Formula
Percentage change = [(520 - 862) / 862] x 100
Subtract the new number by the original number
520 - 862 = -342
-342 ÷ 862 = -0.39675174013921116
-0.39675174013921116 x 100 = -39.68%