159.81% is the change from 321 to 834
Calculation steps:
[( 834 - 321 ) ÷ 321] x 100 = 159.81%
Formula
Percentage change = [(834 - 321) / 321] x 100
Subtract the new number by the original number
834 - 321 = 513
513 ÷ 321 = 1.5981308411214954
1.5981308411214954 x 100 = 159.81%