149.71% is the change from 342 to 854
Calculation steps:
[( 854 - 342 ) ÷ 342] x 100 = 149.71%
Formula
Percentage change = [(854 - 342) / 342] x 100
Subtract the new number by the original number
854 - 342 = 512
512 ÷ 342 = 1.4970760233918128
1.4970760233918128 x 100 = 149.71%