4.97% is the change from 866 to 909
Calculation steps:
[( 909 - 866 ) ÷ 866] x 100 = 4.97%
Formula
Percentage change = [(909 - 866) / 866] x 100
Subtract the new number by the original number
909 - 866 = 43
43 ÷ 866 = 0.049653579676674366
0.049653579676674366 x 100 = 4.97%