-83.16% is the change from 849 to 143
Calculation steps:
[( 143 - 849 ) ÷ 849] x 100 = -83.16%
Formula
Percentage change = [(143 - 849) / 849] x 100
Subtract the new number by the original number
143 - 849 = -706
-706 ÷ 849 = -0.8315665488810365
-0.8315665488810365 x 100 = -83.16%