240.25% is the change from 241 to 820
Calculation steps:
[( 820 - 241 ) ÷ 241] x 100 = 240.25%
Formula
Percentage change = [(820 - 241) / 241] x 100
Subtract the new number by the original number
820 - 241 = 579
579 ÷ 241 = 2.4024896265560165
2.4024896265560165 x 100 = 240.25%