-97.35% is the change from 679 to 18
Calculation steps:
[( 18 - 679 ) ÷ 679] x 100 = -97.35%
Formula
Percentage change = [(18 - 679) / 679] x 100
Subtract the new number by the original number
18 - 679 = -661
-661 ÷ 679 = -0.9734904270986745
-0.9734904270986745 x 100 = -97.35%