150.9% is the change from 334 to 838
Calculation steps:
[( 838 - 334 ) ÷ 334] x 100 = 150.9%
Formula
Percentage change = [(838 - 334) / 334] x 100
Subtract the new number by the original number
838 - 334 = 504
504 ÷ 334 = 1.5089820359281436
1.5089820359281436 x 100 = 150.9%