149.4% is the change from 336 to 838
Calculation steps:
[( 838 - 336 ) ÷ 336] x 100 = 149.4%
Formula
Percentage change = [(838 - 336) / 336] x 100
Subtract the new number by the original number
838 - 336 = 502
502 ÷ 336 = 1.494047619047619
1.494047619047619 x 100 = 149.4%