-7.94% is the change from 856 to 788
Calculation steps:
[( 788 - 856 ) ÷ 856] x 100 = -7.94%
Formula
Percentage change = [(788 - 856) / 856] x 100
Subtract the new number by the original number
788 - 856 = -68
-68 ÷ 856 = -0.0794392523364486
-0.0794392523364486 x 100 = -7.94%