-0.82% is the change from 851 to 844
Calculation steps:
[( 844 - 851 ) ÷ 851] x 100 = -0.82%
Formula
Percentage change = [(844 - 851) / 851] x 100
Subtract the new number by the original number
844 - 851 = -7
-7 ÷ 851 = -0.008225616921269096
-0.008225616921269096 x 100 = -0.82%