136.55% is the change from 342 to 809
Calculation steps:
[( 809 - 342 ) ÷ 342] x 100 = 136.55%
Formula
Percentage change = [(809 - 342) / 342] x 100
Subtract the new number by the original number
809 - 342 = 467
467 ÷ 342 = 1.3654970760233918
1.3654970760233918 x 100 = 136.55%