-97.33% is the change from 674 to 18
Calculation steps:
[( 18 - 674 ) ÷ 674] x 100 = -97.33%
Formula
Percentage change = [(18 - 674) / 674] x 100
Subtract the new number by the original number
18 - 674 = -656
-656 ÷ 674 = -0.973293768545994
-0.973293768545994 x 100 = -97.33%