141.07% is the change from 336 to 810
Calculation steps:
[( 810 - 336 ) ÷ 336] x 100 = 141.07%
Formula
Percentage change = [(810 - 336) / 336] x 100
Subtract the new number by the original number
810 - 336 = 474
474 ÷ 336 = 1.4107142857142858
1.4107142857142858 x 100 = 141.07%