13.27% is the change from 550 to 623
Calculation steps:
[( 623 - 550 ) ÷ 550] x 100 = 13.27%
Formula
Percentage change = [(623 - 550) / 550] x 100
Subtract the new number by the original number
623 - 550 = 73
73 ÷ 550 = 0.13272727272727272
0.13272727272727272 x 100 = 13.27%