-21.25% is the change from 673 to 530
Calculation steps:
[( 530 - 673 ) ÷ 673] x 100 = -21.25%
Formula
Percentage change = [(530 - 673) / 673] x 100
Subtract the new number by the original number
530 - 673 = -143
-143 ÷ 673 = -0.212481426448737
-0.212481426448737 x 100 = -21.25%