-42.74% is the change from 971 to 556
Calculation steps:
[( 556 - 971 ) ÷ 971] x 100 = -42.74%
Formula
Percentage change = [(556 - 971) / 971] x 100
Subtract the new number by the original number
556 - 971 = -415
-415 ÷ 971 = -0.427394438722966
-0.427394438722966 x 100 = -42.74%