35.09% is the change from 550 to 743
Calculation steps:
[( 743 - 550 ) ÷ 550] x 100 = 35.09%
Formula
Percentage change = [(743 - 550) / 550] x 100
Subtract the new number by the original number
743 - 550 = 193
193 ÷ 550 = 0.3509090909090909
0.3509090909090909 x 100 = 35.09%