133.92% is the change from 342 to 800
Calculation steps:
[( 800 - 342 ) ÷ 342] x 100 = 133.92%
Formula
Percentage change = [(800 - 342) / 342] x 100
Subtract the new number by the original number
800 - 342 = 458
458 ÷ 342 = 1.3391812865497077
1.3391812865497077 x 100 = 133.92%