-91.71% is the change from 856 to 71
Calculation steps:
[( 71 - 856 ) ÷ 856] x 100 = -91.71%
Formula
Percentage change = [(71 - 856) / 856] x 100
Subtract the new number by the original number
71 - 856 = -785
-785 ÷ 856 = -0.9170560747663551
-0.9170560747663551 x 100 = -91.71%