-83% is the change from 853 to 145
Calculation steps:
[( 145 - 853 ) ÷ 853] x 100 = -83%
Formula
Percentage change = [(145 - 853) / 853] x 100
Subtract the new number by the original number
145 - 853 = -708
-708 ÷ 853 = -0.8300117233294255
-0.8300117233294255 x 100 = -83%