0.81% is the change from 864 to 871
Calculation steps:
[( 871 - 864 ) ÷ 864] x 100 = 0.81%
Formula
Percentage change = [(871 - 864) / 864] x 100
Subtract the new number by the original number
871 - 864 = 7
7 ÷ 864 = 0.008101851851851851
0.008101851851851851 x 100 = 0.81%