168.75% is the change from 304 to 817
Calculation steps:
[( 817 - 304 ) ÷ 304] x 100 = 168.75%
Formula
Percentage change = [(817 - 304) / 304] x 100
Subtract the new number by the original number
817 - 304 = 513
513 ÷ 304 = 1.6875
1.6875 x 100 = 168.75%