-89.22% is the change from 677 to 73
Calculation steps:
[( 73 - 677 ) ÷ 677] x 100 = -89.22%
Formula
Percentage change = [(73 - 677) / 677] x 100
Subtract the new number by the original number
73 - 677 = -604
-604 ÷ 677 = -0.8921713441654358
-0.8921713441654358 x 100 = -89.22%