-21.27% is the change from 409 to 322
Calculation steps:
[( 322 - 409 ) ÷ 409] x 100 = -21.27%
Formula
Percentage change = [(322 - 409) / 409] x 100
Subtract the new number by the original number
322 - 409 = -87
-87 ÷ 409 = -0.21271393643031786
-0.21271393643031786 x 100 = -21.27%