-29.85% is the change from 851 to 597
Calculation steps:
[( 597 - 851 ) ÷ 851] x 100 = -29.85%
Formula
Percentage change = [(597 - 851) / 851] x 100
Subtract the new number by the original number
597 - 851 = -254
-254 ÷ 851 = -0.2984723854289072
-0.2984723854289072 x 100 = -29.85%