-82.45% is the change from 849 to 149
Calculation steps:
[( 149 - 849 ) ÷ 849] x 100 = -82.45%
Formula
Percentage change = [(149 - 849) / 849] x 100
Subtract the new number by the original number
149 - 849 = -700
-700 ÷ 849 = -0.8244994110718492
-0.8244994110718492 x 100 = -82.45%