142.81% is the change from 334 to 811
Calculation steps:
[( 811 - 334 ) ÷ 334] x 100 = 142.81%
Formula
Percentage change = [(811 - 334) / 334] x 100
Subtract the new number by the original number
811 - 334 = 477
477 ÷ 334 = 1.4281437125748504
1.4281437125748504 x 100 = 142.81%