39.37% is the change from 630 to 878
Calculation steps:
[( 878 - 630 ) ÷ 630] x 100 = 39.37%
Formula
Percentage change = [(878 - 630) / 630] x 100
Subtract the new number by the original number
878 - 630 = 248
248 ÷ 630 = 0.39365079365079364
0.39365079365079364 x 100 = 39.37%