8.73% is the change from 573 to 623
Calculation steps:
[( 623 - 573 ) ÷ 573] x 100 = 8.73%
Formula
Percentage change = [(623 - 573) / 573] x 100
Subtract the new number by the original number
623 - 573 = 50
50 ÷ 573 = 0.08726003490401396
0.08726003490401396 x 100 = 8.73%