30.53% is the change from 321 to 419
Calculation steps:
[( 419 - 321 ) ÷ 321] x 100 = 30.53%
Formula
Percentage change = [(419 - 321) / 321] x 100
Subtract the new number by the original number
419 - 321 = 98
98 ÷ 321 = 0.3052959501557632
0.3052959501557632 x 100 = 30.53%