1223.81% is the change from 42 to 556
Calculation steps:
[( 556 - 42 ) ÷ 42] x 100 = 1223.81%
Formula
Percentage change = [(556 - 42) / 42] x 100
Subtract the new number by the original number
556 - 42 = 514
514 ÷ 42 = 12.238095238095237
12.238095238095237 x 100 = 1223.81%