-3.93% is the change from 891 to 856
Calculation steps:
[( 856 - 891 ) ÷ 891] x 100 = -3.93%
Formula
Percentage change = [(856 - 891) / 891] x 100
Subtract the new number by the original number
856 - 891 = -35
-35 ÷ 891 = -0.03928170594837262
-0.03928170594837262 x 100 = -3.93%