-28.57% is the change from 728 to 520
Calculation steps:
[( 520 - 728 ) ÷ 728] x 100 = -28.57%
Formula
Percentage change = [(520 - 728) / 728] x 100
Subtract the new number by the original number
520 - 728 = -208
-208 ÷ 728 = -0.2857142857142857
-0.2857142857142857 x 100 = -28.57%