406.1% is the change from 164 to 830
Calculation steps:
[( 830 - 164 ) ÷ 164] x 100 = 406.1%
Formula
Percentage change = [(830 - 164) / 164] x 100
Subtract the new number by the original number
830 - 164 = 666
666 ÷ 164 = 4.060975609756097
4.060975609756097 x 100 = 406.1%