397.56% is the change from 164 to 816
Calculation steps:
[( 816 - 164 ) ÷ 164] x 100 = 397.56%
Formula
Percentage change = [(816 - 164) / 164] x 100
Subtract the new number by the original number
816 - 164 = 652
652 ÷ 164 = 3.975609756097561
3.975609756097561 x 100 = 397.56%