-82.38% is the change from 806 to 142
Calculation steps:
[( 142 - 806 ) ÷ 806] x 100 = -82.38%
Formula
Percentage change = [(142 - 806) / 806] x 100
Subtract the new number by the original number
142 - 806 = -664
-664 ÷ 806 = -0.8238213399503722
-0.8238213399503722 x 100 = -82.38%