-27.21% is the change from 441 to 321
Calculation steps:
[( 321 - 441 ) ÷ 441] x 100 = -27.21%
Formula
Percentage change = [(321 - 441) / 441] x 100
Subtract the new number by the original number
321 - 441 = -120
-120 ÷ 441 = -0.272108843537415
-0.272108843537415 x 100 = -27.21%