-57.08% is the change from 720 to 309
Calculation steps:
[( 309 - 720 ) ÷ 720] x 100 = -57.08%
Formula
Percentage change = [(309 - 720) / 720] x 100
Subtract the new number by the original number
309 - 720 = -411
-411 ÷ 720 = -0.5708333333333333
-0.5708333333333333 x 100 = -57.08%