-28.89% is the change from 720 to 512
Calculation steps:
[( 512 - 720 ) ÷ 720] x 100 = -28.89%
Formula
Percentage change = [(512 - 720) / 720] x 100
Subtract the new number by the original number
512 - 720 = -208
-208 ÷ 720 = -0.28888888888888886
-0.28888888888888886 x 100 = -28.89%