3.46% is the change from 837 to 866
Calculation steps:
[( 866 - 837 ) ÷ 837] x 100 = 3.46%
Formula
Percentage change = [(866 - 837) / 837] x 100
Subtract the new number by the original number
866 - 837 = 29
29 ÷ 837 = 0.03464755077658303
0.03464755077658303 x 100 = 3.46%