-97.27% is the change from 659 to 18
Calculation steps:
[( 18 - 659 ) ÷ 659] x 100 = -97.27%
Formula
Percentage change = [(18 - 659) / 659] x 100
Subtract the new number by the original number
18 - 659 = -641
-641 ÷ 659 = -0.9726858877086495
-0.9726858877086495 x 100 = -97.27%