-28.32% is the change from 851 to 610
Calculation steps:
[( 610 - 851 ) ÷ 851] x 100 = -28.32%
Formula
Percentage change = [(610 - 851) / 851] x 100
Subtract the new number by the original number
610 - 851 = -241
-241 ÷ 851 = -0.28319623971797886
-0.28319623971797886 x 100 = -28.32%