4.76% is the change from 630 to 660
Calculation steps:
[( 660 - 630 ) ÷ 630] x 100 = 4.76%
Formula
Percentage change = [(660 - 630) / 630] x 100
Subtract the new number by the original number
660 - 630 = 30
30 ÷ 630 = 0.047619047619047616
0.047619047619047616 x 100 = 4.76%