-2.98% is the change from 939 to 911
Calculation steps:
[( 911 - 939 ) ÷ 939] x 100 = -2.98%
Formula
Percentage change = [(911 - 939) / 939] x 100
Subtract the new number by the original number
911 - 939 = -28
-28 ÷ 939 = -0.029818956336528223
-0.029818956336528223 x 100 = -2.98%