-99.41% is the change from 673 to 4
Calculation steps:
[( 4 - 673 ) ÷ 673] x 100 = -99.41%
Formula
Percentage change = [(4 - 673) / 673] x 100
Subtract the new number by the original number
4 - 673 = -669
-669 ÷ 673 = -0.9940564635958395
-0.9940564635958395 x 100 = -99.41%