-3.09% is the change from 939 to 910
Calculation steps:
[( 910 - 939 ) ÷ 939] x 100 = -3.09%
Formula
Percentage change = [(910 - 939) / 939] x 100
Subtract the new number by the original number
910 - 939 = -29
-29 ÷ 939 = -0.0308839190628328
-0.0308839190628328 x 100 = -3.09%