-3.93% is the change from 966 to 928
Calculation steps:
[( 928 - 966 ) ÷ 966] x 100 = -3.93%
Formula
Percentage change = [(928 - 966) / 966] x 100
Subtract the new number by the original number
928 - 966 = -38
-38 ÷ 966 = -0.039337474120082816
-0.039337474120082816 x 100 = -3.93%