-97.98% is the change from 891 to 18
Calculation steps:
[( 18 - 891 ) ÷ 891] x 100 = -97.98%
Formula
Percentage change = [(18 - 891) / 891] x 100
Subtract the new number by the original number
18 - 891 = -873
-873 ÷ 891 = -0.9797979797979798
-0.9797979797979798 x 100 = -97.98%