-82.84% is the change from 851 to 146
Calculation steps:
[( 146 - 851 ) ÷ 851] x 100 = -82.84%
Formula
Percentage change = [(146 - 851) / 851] x 100
Subtract the new number by the original number
146 - 851 = -705
-705 ÷ 851 = -0.8284371327849589
-0.8284371327849589 x 100 = -82.84%