3.59% is the change from 836 to 866
Calculation steps:
[( 866 - 836 ) ÷ 836] x 100 = 3.59%
Formula
Percentage change = [(866 - 836) / 836] x 100
Subtract the new number by the original number
866 - 836 = 30
30 ÷ 836 = 0.03588516746411483
0.03588516746411483 x 100 = 3.59%