26.73% is the change from 434 to 550
Calculation steps:
[( 550 - 434 ) ÷ 434] x 100 = 26.73%
Formula
Percentage change = [(550 - 434) / 434] x 100
Subtract the new number by the original number
550 - 434 = 116
116 ÷ 434 = 0.2672811059907834
0.2672811059907834 x 100 = 26.73%