148.83% is the change from 342 to 851
Calculation steps:
[( 851 - 342 ) ÷ 342] x 100 = 148.83%
Formula
Percentage change = [(851 - 342) / 342] x 100
Subtract the new number by the original number
851 - 342 = 509
509 ÷ 342 = 1.4883040935672514
1.4883040935672514 x 100 = 148.83%