-28.44% is the change from 851 to 609
Calculation steps:
[( 609 - 851 ) ÷ 851] x 100 = -28.44%
Formula
Percentage change = [(609 - 851) / 851] x 100
Subtract the new number by the original number
609 - 851 = -242
-242 ÷ 851 = -0.28437132784958874
-0.28437132784958874 x 100 = -28.44%