-39.72% is the change from 856 to 516
Calculation steps:
[( 516 - 856 ) ÷ 856] x 100 = -39.72%
Formula
Percentage change = [(516 - 856) / 856] x 100
Subtract the new number by the original number
516 - 856 = -340
-340 ÷ 856 = -0.397196261682243
-0.397196261682243 x 100 = -39.72%