126.34% is the change from 243 to 550
Calculation steps:
[( 550 - 243 ) ÷ 243] x 100 = 126.34%
Formula
Percentage change = [(550 - 243) / 243] x 100
Subtract the new number by the original number
550 - 243 = 307
307 ÷ 243 = 1.2633744855967077
1.2633744855967077 x 100 = 126.34%