238.02% is the change from 242 to 818
Calculation steps:
[( 818 - 242 ) ÷ 242] x 100 = 238.02%
Formula
Percentage change = [(818 - 242) / 242] x 100
Subtract the new number by the original number
818 - 242 = 576
576 ÷ 242 = 2.3801652892561984
2.3801652892561984 x 100 = 238.02%