-54.68% is the change from 673 to 305
Calculation steps:
[( 305 - 673 ) ÷ 673] x 100 = -54.68%
Formula
Percentage change = [(305 - 673) / 673] x 100
Subtract the new number by the original number
305 - 673 = -368
-368 ÷ 673 = -0.5468053491827637
-0.5468053491827637 x 100 = -54.68%