-0.94% is the change from 855 to 847
Calculation steps:
[( 847 - 855 ) ÷ 855] x 100 = -0.94%
Formula
Percentage change = [(847 - 855) / 855] x 100
Subtract the new number by the original number
847 - 855 = -8
-8 ÷ 855 = -0.00935672514619883
-0.00935672514619883 x 100 = -0.94%