88.79% is the change from 321 to 606
Calculation steps:
[( 606 - 321 ) ÷ 321] x 100 = 88.79%
Formula
Percentage change = [(606 - 321) / 321] x 100
Subtract the new number by the original number
606 - 321 = 285
285 ÷ 321 = 0.8878504672897196
0.8878504672897196 x 100 = 88.79%