-2.28% is the change from 876 to 856
Calculation steps:
[( 856 - 876 ) ÷ 876] x 100 = -2.28%
Formula
Percentage change = [(856 - 876) / 876] x 100
Subtract the new number by the original number
856 - 876 = -20
-20 ÷ 876 = -0.0228310502283105
-0.0228310502283105 x 100 = -2.28%