154.83% is the change from 321 to 818
Calculation steps:
[( 818 - 321 ) ÷ 321] x 100 = 154.83%
Formula
Percentage change = [(818 - 321) / 321] x 100
Subtract the new number by the original number
818 - 321 = 497
497 ÷ 321 = 1.5482866043613708
1.5482866043613708 x 100 = 154.83%