-1.68% is the change from 955 to 939
Calculation steps:
[( 939 - 955 ) ÷ 955] x 100 = -1.68%
Formula
Percentage change = [(939 - 955) / 955] x 100
Subtract the new number by the original number
939 - 955 = -16
-16 ÷ 955 = -0.016753926701570682
-0.016753926701570682 x 100 = -1.68%