7.7% is the change from 909 to 979
Calculation steps:
[( 979 - 909 ) ÷ 909] x 100 = 7.7%
Formula
Percentage change = [(979 - 909) / 909] x 100
Subtract the new number by the original number
979 - 909 = 70
70 ÷ 909 = 0.07700770077007701
0.07700770077007701 x 100 = 7.7%