0.73% is the change from 551 to 555
Calculation steps:
[( 555 - 551 ) ÷ 551] x 100 = 0.73%
Formula
Percentage change = [(555 - 551) / 551] x 100
Subtract the new number by the original number
555 - 551 = 4
4 ÷ 551 = 0.007259528130671506
0.007259528130671506 x 100 = 0.73%