-29.58% is the change from 720 to 507
Calculation steps:
[( 507 - 720 ) ÷ 720] x 100 = -29.58%
Formula
Percentage change = [(507 - 720) / 720] x 100
Subtract the new number by the original number
507 - 720 = -213
-213 ÷ 720 = -0.29583333333333334
-0.29583333333333334 x 100 = -29.58%