5.61% is the change from 820 to 866
Calculation steps:
[( 866 - 820 ) ÷ 820] x 100 = 5.61%
Formula
Percentage change = [(866 - 820) / 820] x 100
Subtract the new number by the original number
866 - 820 = 46
46 ÷ 820 = 0.05609756097560976
0.05609756097560976 x 100 = 5.61%