7.81% is the change from 871 to 939
Calculation steps:
[( 939 - 871 ) ÷ 871] x 100 = 7.81%
Formula
Percentage change = [(939 - 871) / 871] x 100
Subtract the new number by the original number
939 - 871 = 68
68 ÷ 871 = 0.07807118254879448
0.07807118254879448 x 100 = 7.81%