398.78% is the change from 164 to 818
Calculation steps:
[( 818 - 164 ) ÷ 164] x 100 = 398.78%
Formula
Percentage change = [(818 - 164) / 164] x 100
Subtract the new number by the original number
818 - 164 = 654
654 ÷ 164 = 3.9878048780487805
3.9878048780487805 x 100 = 398.78%