-20.21% is the change from 673 to 537
Calculation steps:
[( 537 - 673 ) ÷ 673] x 100 = -20.21%
Formula
Percentage change = [(537 - 673) / 673] x 100
Subtract the new number by the original number
537 - 673 = -136
-136 ÷ 673 = -0.20208023774145617
-0.20208023774145617 x 100 = -20.21%