399.38% is the change from 162 to 809
Calculation steps:
[( 809 - 162 ) ÷ 162] x 100 = 399.38%
Formula
Percentage change = [(809 - 162) / 162] x 100
Subtract the new number by the original number
809 - 162 = 647
647 ÷ 162 = 3.993827160493827
3.993827160493827 x 100 = 399.38%