-97.89% is the change from 852 to 18
Calculation steps:
[( 18 - 852 ) ÷ 852] x 100 = -97.89%
Formula
Percentage change = [(18 - 852) / 852] x 100
Subtract the new number by the original number
18 - 852 = -834
-834 ÷ 852 = -0.9788732394366197
-0.9788732394366197 x 100 = -97.89%