317.95% is the change from 195 to 815
Calculation steps:
[( 815 - 195 ) ÷ 195] x 100 = 317.95%
Formula
Percentage change = [(815 - 195) / 195] x 100
Subtract the new number by the original number
815 - 195 = 620
620 ÷ 195 = 3.1794871794871793
3.1794871794871793 x 100 = 317.95%