145.32% is the change from 342 to 839
Calculation steps:
[( 839 - 342 ) ÷ 342] x 100 = 145.32%
Formula
Percentage change = [(839 - 342) / 342] x 100
Subtract the new number by the original number
839 - 342 = 497
497 ÷ 342 = 1.4532163742690059
1.4532163742690059 x 100 = 145.32%