-27.41% is the change from 321 to 233
Calculation steps:
[( 233 - 321 ) ÷ 321] x 100 = -27.41%
Formula
Percentage change = [(233 - 321) / 321] x 100
Subtract the new number by the original number
233 - 321 = -88
-88 ÷ 321 = -0.27414330218068533
-0.27414330218068533 x 100 = -27.41%