6.91% is the change from 810 to 866
Calculation steps:
[( 866 - 810 ) ÷ 810] x 100 = 6.91%
Formula
Percentage change = [(866 - 810) / 810] x 100
Subtract the new number by the original number
866 - 810 = 56
56 ÷ 810 = 0.0691358024691358
0.0691358024691358 x 100 = 6.91%