170.2% is the change from 302 to 816
Calculation steps:
[( 816 - 302 ) ÷ 302] x 100 = 170.2%
Formula
Percentage change = [(816 - 302) / 302] x 100
Subtract the new number by the original number
816 - 302 = 514
514 ÷ 302 = 1.7019867549668874
1.7019867549668874 x 100 = 170.2%