-21.13% is the change from 672 to 530
Calculation steps:
[( 530 - 672 ) ÷ 672] x 100 = -21.13%
Formula
Percentage change = [(530 - 672) / 672] x 100
Subtract the new number by the original number
530 - 672 = -142
-142 ÷ 672 = -0.2113095238095238
-0.2113095238095238 x 100 = -21.13%