171.1% is the change from 301 to 816
Calculation steps:
[( 816 - 301 ) ÷ 301] x 100 = 171.1%
Formula
Percentage change = [(816 - 301) / 301] x 100
Subtract the new number by the original number
816 - 301 = 515
515 ÷ 301 = 1.7109634551495017
1.7109634551495017 x 100 = 171.1%