-76.97% is the change from 673 to 155
Calculation steps:
[( 155 - 673 ) ÷ 673] x 100 = -76.97%
Formula
Percentage change = [(155 - 673) / 673] x 100
Subtract the new number by the original number
155 - 673 = -518
-518 ÷ 673 = -0.7696879643387816
-0.7696879643387816 x 100 = -76.97%