170.76% is the change from 301 to 815
Calculation steps:
[( 815 - 301 ) ÷ 301] x 100 = 170.76%
Formula
Percentage change = [(815 - 301) / 301] x 100
Subtract the new number by the original number
815 - 301 = 514
514 ÷ 301 = 1.7076411960132891
1.7076411960132891 x 100 = 170.76%