307.96% is the change from 201 to 820
Calculation steps:
[( 820 - 201 ) ÷ 201] x 100 = 307.96%
Formula
Percentage change = [(820 - 201) / 201] x 100
Subtract the new number by the original number
820 - 201 = 619
619 ÷ 201 = 3.0796019900497513
3.0796019900497513 x 100 = 307.96%