-22.2% is the change from 509 to 396
Calculation steps:
[( 396 - 509 ) ÷ 509] x 100 = -22.2%
Formula
Percentage change = [(396 - 509) / 509] x 100
Subtract the new number by the original number
396 - 509 = -113
-113 ÷ 509 = -0.2220039292730845
-0.2220039292730845 x 100 = -22.2%