-24.94% is the change from 862 to 647
Calculation steps:
[( 647 - 862 ) ÷ 862] x 100 = -24.94%
Formula
Percentage change = [(647 - 862) / 862] x 100
Subtract the new number by the original number
647 - 862 = -215
-215 ÷ 862 = -0.2494199535962877
-0.2494199535962877 x 100 = -24.94%