-82.13% is the change from 817 to 146
Calculation steps:
[( 146 - 817 ) ÷ 817] x 100 = -82.13%
Formula
Percentage change = [(146 - 817) / 817] x 100
Subtract the new number by the original number
146 - 817 = -671
-671 ÷ 817 = -0.8212974296205631
-0.8212974296205631 x 100 = -82.13%