-3.18% is the change from 409 to 396
Calculation steps:
[( 396 - 409 ) ÷ 409] x 100 = -3.18%
Formula
Percentage change = [(396 - 409) / 409] x 100
Subtract the new number by the original number
396 - 409 = -13
-13 ÷ 409 = -0.03178484107579462
-0.03178484107579462 x 100 = -3.18%