-20.05% is the change from 409 to 327
Calculation steps:
[( 327 - 409 ) ÷ 409] x 100 = -20.05%
Formula
Percentage change = [(327 - 409) / 409] x 100
Subtract the new number by the original number
327 - 409 = -82
-82 ÷ 409 = -0.20048899755501223
-0.20048899755501223 x 100 = -20.05%