88.16% is the change from 321 to 604
Calculation steps:
[( 604 - 321 ) ÷ 321] x 100 = 88.16%
Formula
Percentage change = [(604 - 321) / 321] x 100
Subtract the new number by the original number
604 - 321 = 283
283 ÷ 321 = 0.881619937694704
0.881619937694704 x 100 = 88.16%