-5.77% is the change from 971 to 915
Calculation steps:
[( 915 - 971 ) ÷ 971] x 100 = -5.77%
Formula
Percentage change = [(915 - 971) / 971] x 100
Subtract the new number by the original number
915 - 971 = -56
-56 ÷ 971 = -0.057672502574665295
-0.057672502574665295 x 100 = -5.77%