-20.06% is the change from 673 to 538
Calculation steps:
[( 538 - 673 ) ÷ 673] x 100 = -20.06%
Formula
Percentage change = [(538 - 673) / 673] x 100
Subtract the new number by the original number
538 - 673 = -135
-135 ÷ 673 = -0.20059435364041606
-0.20059435364041606 x 100 = -20.06%