-17.71% is the change from 497 to 409
Calculation steps:
[( 409 - 497 ) ÷ 497] x 100 = -17.71%
Formula
Percentage change = [(409 - 497) / 497] x 100
Subtract the new number by the original number
409 - 497 = -88
-88 ÷ 497 = -0.17706237424547283
-0.17706237424547283 x 100 = -17.71%