38.25% is the change from 630 to 871
Calculation steps:
[( 871 - 630 ) ÷ 630] x 100 = 38.25%
Formula
Percentage change = [(871 - 630) / 630] x 100
Subtract the new number by the original number
871 - 630 = 241
241 ÷ 630 = 0.3825396825396825
0.3825396825396825 x 100 = 38.25%