392.94% is the change from 170 to 838
Calculation steps:
[( 838 - 170 ) ÷ 170] x 100 = 392.94%
Formula
Percentage change = [(838 - 170) / 170] x 100
Subtract the new number by the original number
838 - 170 = 668
668 ÷ 170 = 3.929411764705882
3.929411764705882 x 100 = 392.94%