-33.74% is the change from 409 to 271
Calculation steps:
[( 271 - 409 ) ÷ 409] x 100 = -33.74%
Formula
Percentage change = [(271 - 409) / 409] x 100
Subtract the new number by the original number
271 - 409 = -138
-138 ÷ 409 = -0.3374083129584352
-0.3374083129584352 x 100 = -33.74%