-32.4% is the change from 753 to 509
Calculation steps:
[( 509 - 753 ) ÷ 753] x 100 = -32.4%
Formula
Percentage change = [(509 - 753) / 753] x 100
Subtract the new number by the original number
509 - 753 = -244
-244 ÷ 753 = -0.3240371845949535
-0.3240371845949535 x 100 = -32.4%