-97.93% is the change from 869 to 18
Calculation steps:
[( 18 - 869 ) ÷ 869] x 100 = -97.93%
Formula
Percentage change = [(18 - 869) / 869] x 100
Subtract the new number by the original number
18 - 869 = -851
-851 ÷ 869 = -0.9792865362485615
-0.9792865362485615 x 100 = -97.93%