320.51% is the change from 195 to 820
Calculation steps:
[( 820 - 195 ) ÷ 195] x 100 = 320.51%
Formula
Percentage change = [(820 - 195) / 195] x 100
Subtract the new number by the original number
820 - 195 = 625
625 ÷ 195 = 3.2051282051282053
3.2051282051282053 x 100 = 320.51%