-1.64% is the change from 856 to 842
Calculation steps:
[( 842 - 856 ) ÷ 856] x 100 = -1.64%
Formula
Percentage change = [(842 - 856) / 856] x 100
Subtract the new number by the original number
842 - 856 = -14
-14 ÷ 856 = -0.016355140186915886
-0.016355140186915886 x 100 = -1.64%