-5.63% is the change from 906 to 855
Calculation steps:
[( 855 - 906 ) ÷ 906] x 100 = -5.63%
Formula
Percentage change = [(855 - 906) / 906] x 100
Subtract the new number by the original number
855 - 906 = -51
-51 ÷ 906 = -0.056291390728476824
-0.056291390728476824 x 100 = -5.63%