155.21% is the change from 317 to 809
Calculation steps:
[( 809 - 317 ) ÷ 317] x 100 = 155.21%
Formula
Percentage change = [(809 - 317) / 317] x 100
Subtract the new number by the original number
809 - 317 = 492
492 ÷ 317 = 1.5520504731861198
1.5520504731861198 x 100 = 155.21%