-23.39% is the change from 419 to 321
Calculation steps:
[( 321 - 419 ) ÷ 419] x 100 = -23.39%
Formula
Percentage change = [(321 - 419) / 419] x 100
Subtract the new number by the original number
321 - 419 = -98
-98 ÷ 419 = -0.23389021479713604
-0.23389021479713604 x 100 = -23.39%