305.94% is the change from 202 to 820
Calculation steps:
[( 820 - 202 ) ÷ 202] x 100 = 305.94%
Formula
Percentage change = [(820 - 202) / 202] x 100
Subtract the new number by the original number
820 - 202 = 618
618 ÷ 202 = 3.0594059405940595
3.0594059405940595 x 100 = 305.94%