320.1% is the change from 194 to 815
Calculation steps:
[( 815 - 194 ) ÷ 194] x 100 = 320.1%
Formula
Percentage change = [(815 - 194) / 194] x 100
Subtract the new number by the original number
815 - 194 = 621
621 ÷ 194 = 3.2010309278350517
3.2010309278350517 x 100 = 320.1%