152.65% is the change from 321 to 811
Calculation steps:
[( 811 - 321 ) ÷ 321] x 100 = 152.65%
Formula
Percentage change = [(811 - 321) / 321] x 100
Subtract the new number by the original number
811 - 321 = 490
490 ÷ 321 = 1.5264797507788161
1.5264797507788161 x 100 = 152.65%