-21.55% is the change from 673 to 528
Calculation steps:
[( 528 - 673 ) ÷ 673] x 100 = -21.55%
Formula
Percentage change = [(528 - 673) / 673] x 100
Subtract the new number by the original number
528 - 673 = -145
-145 ÷ 673 = -0.21545319465081725
-0.21545319465081725 x 100 = -21.55%