-82.86% is the change from 817 to 140
Calculation steps:
[( 140 - 817 ) ÷ 817] x 100 = -82.86%
Formula
Percentage change = [(140 - 817) / 817] x 100
Subtract the new number by the original number
140 - 817 = -677
-677 ÷ 817 = -0.828641370869033
-0.828641370869033 x 100 = -82.86%