35.71% is the change from 630 to 855
Calculation steps:
[( 855 - 630 ) ÷ 630] x 100 = 35.71%
Formula
Percentage change = [(855 - 630) / 630] x 100
Subtract the new number by the original number
855 - 630 = 225
225 ÷ 630 = 0.35714285714285715
0.35714285714285715 x 100 = 35.71%