-5.35% is the change from 673 to 637
Calculation steps:
[( 637 - 673 ) ÷ 673] x 100 = -5.35%
Formula
Percentage change = [(637 - 673) / 673] x 100
Subtract the new number by the original number
637 - 673 = -36
-36 ÷ 673 = -0.05349182763744428
-0.05349182763744428 x 100 = -5.35%