-3% is the change from 968 to 939
Calculation steps:
[( 939 - 968 ) ÷ 968] x 100 = -3%
Formula
Percentage change = [(939 - 968) / 968] x 100
Subtract the new number by the original number
939 - 968 = -29
-29 ÷ 968 = -0.029958677685950414
-0.029958677685950414 x 100 = -3%