-18.93% is the change from 729 to 591
Calculation steps:
[( 591 - 729 ) ÷ 729] x 100 = -18.93%
Formula
Percentage change = [(591 - 729) / 729] x 100
Subtract the new number by the original number
591 - 729 = -138
-138 ÷ 729 = -0.18930041152263374
-0.18930041152263374 x 100 = -18.93%