-28.47% is the change from 720 to 515
Calculation steps:
[( 515 - 720 ) ÷ 720] x 100 = -28.47%
Formula
Percentage change = [(515 - 720) / 720] x 100
Subtract the new number by the original number
515 - 720 = -205
-205 ÷ 720 = -0.2847222222222222
-0.2847222222222222 x 100 = -28.47%