0.31% is the change from 321 to 322
Calculation steps:
[( 322 - 321 ) ÷ 321] x 100 = 0.31%
Formula
Percentage change = [(322 - 321) / 321] x 100
Subtract the new number by the original number
322 - 321 = 1
1 ÷ 321 = 0.003115264797507788
0.003115264797507788 x 100 = 0.31%