151.39% is the change from 323 to 812
Calculation steps:
[( 812 - 323 ) ÷ 323] x 100 = 151.39%
Formula
Percentage change = [(812 - 323) / 323] x 100
Subtract the new number by the original number
812 - 323 = 489
489 ÷ 323 = 1.5139318885448916
1.5139318885448916 x 100 = 151.39%