-91.54% is the change from 851 to 72
Calculation steps:
[( 72 - 851 ) ÷ 851] x 100 = -91.54%
Formula
Percentage change = [(72 - 851) / 851] x 100
Subtract the new number by the original number
72 - 851 = -779
-779 ÷ 851 = -0.9153936545240893
-0.9153936545240893 x 100 = -91.54%