52.02% is the change from 321 to 488
Calculation steps:
[( 488 - 321 ) ÷ 321] x 100 = 52.02%
Formula
Percentage change = [(488 - 321) / 321] x 100
Subtract the new number by the original number
488 - 321 = 167
167 ÷ 321 = 0.5202492211838006
0.5202492211838006 x 100 = 52.02%