-5.52% is the change from 906 to 856
Calculation steps:
[( 856 - 906 ) ÷ 906] x 100 = -5.52%
Formula
Percentage change = [(856 - 906) / 906] x 100
Subtract the new number by the original number
856 - 906 = -50
-50 ÷ 906 = -0.05518763796909492
-0.05518763796909492 x 100 = -5.52%