-0.77% is the change from 909 to 902
Calculation steps:
[( 902 - 909 ) ÷ 909] x 100 = -0.77%
Formula
Percentage change = [(902 - 909) / 909] x 100
Subtract the new number by the original number
902 - 909 = -7
-7 ÷ 909 = -0.007700770077007701
-0.007700770077007701 x 100 = -0.77%