-22.47% is the change from 672 to 521
Calculation steps:
[( 521 - 672 ) ÷ 672] x 100 = -22.47%
Formula
Percentage change = [(521 - 672) / 672] x 100
Subtract the new number by the original number
521 - 672 = -151
-151 ÷ 672 = -0.22470238095238096
-0.22470238095238096 x 100 = -22.47%