172.58% is the change from 299 to 815
Calculation steps:
[( 815 - 299 ) ÷ 299] x 100 = 172.58%
Formula
Percentage change = [(815 - 299) / 299] x 100
Subtract the new number by the original number
815 - 299 = 516
516 ÷ 299 = 1.725752508361204
1.725752508361204 x 100 = 172.58%