145.45% is the change from 330 to 810
Calculation steps:
[( 810 - 330 ) ÷ 330] x 100 = 145.45%
Formula
Percentage change = [(810 - 330) / 330] x 100
Subtract the new number by the original number
810 - 330 = 480
480 ÷ 330 = 1.4545454545454546
1.4545454545454546 x 100 = 145.45%