398.79% is the change from 165 to 823
Calculation steps:
[( 823 - 165 ) ÷ 165] x 100 = 398.79%
Formula
Percentage change = [(823 - 165) / 165] x 100
Subtract the new number by the original number
823 - 165 = 658
658 ÷ 165 = 3.987878787878788
3.987878787878788 x 100 = 398.79%