-34.67% is the change from 851 to 556
Calculation steps:
[( 556 - 851 ) ÷ 851] x 100 = -34.67%
Formula
Percentage change = [(556 - 851) / 851] x 100
Subtract the new number by the original number
556 - 851 = -295
-295 ÷ 851 = -0.34665099882491185
-0.34665099882491185 x 100 = -34.67%