0.16% is the change from 630 to 631
Calculation steps:
[( 631 - 630 ) ÷ 630] x 100 = 0.16%
Formula
Percentage change = [(631 - 630) / 630] x 100
Subtract the new number by the original number
631 - 630 = 1
1 ÷ 630 = 0.0015873015873015873
0.0015873015873015873 x 100 = 0.16%