-28.85% is the change from 728 to 518
Calculation steps:
[( 518 - 728 ) ÷ 728] x 100 = -28.85%
Formula
Percentage change = [(518 - 728) / 728] x 100
Subtract the new number by the original number
518 - 728 = -210
-210 ÷ 728 = -0.28846153846153844
-0.28846153846153844 x 100 = -28.85%