-93.31% is the change from 673 to 45
Calculation steps:
[( 45 - 673 ) ÷ 673] x 100 = -93.31%
Formula
Percentage change = [(45 - 673) / 673] x 100
Subtract the new number by the original number
45 - 673 = -628
-628 ÷ 673 = -0.9331352154531947
-0.9331352154531947 x 100 = -93.31%