-0.51% is the change from 971 to 966
Calculation steps:
[( 966 - 971 ) ÷ 971] x 100 = -0.51%
Formula
Percentage change = [(966 - 971) / 971] x 100
Subtract the new number by the original number
966 - 971 = -5
-5 ÷ 971 = -0.005149330587023687
-0.005149330587023687 x 100 = -0.51%