-29.99% is the change from 727 to 509
Calculation steps:
[( 509 - 727 ) ÷ 727] x 100 = -29.99%
Formula
Percentage change = [(509 - 727) / 727] x 100
Subtract the new number by the original number
509 - 727 = -218
-218 ÷ 727 = -0.2998624484181568
-0.2998624484181568 x 100 = -29.99%