-96.59% is the change from 851 to 29
Calculation steps:
[( 29 - 851 ) ÷ 851] x 100 = -96.59%
Formula
Percentage change = [(29 - 851) / 851] x 100
Subtract the new number by the original number
29 - 851 = -822
-822 ÷ 851 = -0.9659224441833137
-0.9659224441833137 x 100 = -96.59%