31.27% is the change from 630 to 827
Calculation steps:
[( 827 - 630 ) ÷ 630] x 100 = 31.27%
Formula
Percentage change = [(827 - 630) / 630] x 100
Subtract the new number by the original number
827 - 630 = 197
197 ÷ 630 = 0.3126984126984127
0.3126984126984127 x 100 = 31.27%