142.42% is the change from 330 to 800
Calculation steps:
[( 800 - 330 ) ÷ 330] x 100 = 142.42%
Formula
Percentage change = [(800 - 330) / 330] x 100
Subtract the new number by the original number
800 - 330 = 470
470 ÷ 330 = 1.4242424242424243
1.4242424242424243 x 100 = 142.42%