47.78% is the change from 630 to 931
Calculation steps:
[( 931 - 630 ) ÷ 630] x 100 = 47.78%
Formula
Percentage change = [(931 - 630) / 630] x 100
Subtract the new number by the original number
931 - 630 = 301
301 ÷ 630 = 0.4777777777777778
0.4777777777777778 x 100 = 47.78%