-98.14% is the change from 970 to 18
Calculation steps:
[( 18 - 970 ) ÷ 970] x 100 = -98.14%
Formula
Percentage change = [(18 - 970) / 970] x 100
Subtract the new number by the original number
18 - 970 = -952
-952 ÷ 970 = -0.9814432989690721
-0.9814432989690721 x 100 = -98.14%