-82.62% is the change from 823 to 143
Calculation steps:
[( 143 - 823 ) ÷ 823] x 100 = -82.62%
Formula
Percentage change = [(143 - 823) / 823] x 100
Subtract the new number by the original number
143 - 823 = -680
-680 ÷ 823 = -0.8262454434993924
-0.8262454434993924 x 100 = -82.62%