0.24% is the change from 423 to 424
Calculation steps:
[( 424 - 423 ) ÷ 423] x 100 = 0.24%
Formula
Percentage change = [(424 - 423) / 423] x 100
Subtract the new number by the original number
424 - 423 = 1
1 ÷ 423 = 0.002364066193853428
0.002364066193853428 x 100 = 0.24%