6.15% is the change from 813 to 863
Calculation steps:
[( 863 - 813 ) ÷ 813] x 100 = 6.15%
Formula
Percentage change = [(863 - 813) / 813] x 100
Subtract the new number by the original number
863 - 813 = 50
50 ÷ 813 = 0.06150061500615006
0.06150061500615006 x 100 = 6.15%