-82.53% is the change from 853 to 149
Calculation steps:
[( 149 - 853 ) ÷ 853] x 100 = -82.53%
Formula
Percentage change = [(149 - 853) / 853] x 100
Subtract the new number by the original number
149 - 853 = -704
-704 ÷ 853 = -0.8253223915592028
-0.8253223915592028 x 100 = -82.53%