-97.25% is the change from 654 to 18
Calculation steps:
[( 18 - 654 ) ÷ 654] x 100 = -97.25%
Formula
Percentage change = [(18 - 654) / 654] x 100
Subtract the new number by the original number
18 - 654 = -636
-636 ÷ 654 = -0.9724770642201835
-0.9724770642201835 x 100 = -97.25%