39.68% is the change from 630 to 880
Calculation steps:
[( 880 - 630 ) ÷ 630] x 100 = 39.68%
Formula
Percentage change = [(880 - 630) / 630] x 100
Subtract the new number by the original number
880 - 630 = 250
250 ÷ 630 = 0.3968253968253968
0.3968253968253968 x 100 = 39.68%