271.6% is the change from 243 to 903
Calculation steps:
[( 903 - 243 ) ÷ 243] x 100 = 271.6%
Formula
Percentage change = [(903 - 243) / 243] x 100
Subtract the new number by the original number
903 - 243 = 660
660 ÷ 243 = 2.7160493827160495
2.7160493827160495 x 100 = 271.6%