143.84% is the change from 349 to 851
Calculation steps:
[( 851 - 349 ) ÷ 349] x 100 = 143.84%
Formula
Percentage change = [(851 - 349) / 349] x 100
Subtract the new number by the original number
851 - 349 = 502
502 ÷ 349 = 1.4383954154727794
1.4383954154727794 x 100 = 143.84%