152.02% is the change from 321 to 809
Calculation steps:
[( 809 - 321 ) ÷ 321] x 100 = 152.02%
Formula
Percentage change = [(809 - 321) / 321] x 100
Subtract the new number by the original number
809 - 321 = 488
488 ÷ 321 = 1.5202492211838006
1.5202492211838006 x 100 = 152.02%