-9.99% is the change from 971 to 874
Calculation steps:
[( 874 - 971 ) ÷ 971] x 100 = -9.99%
Formula
Percentage change = [(874 - 971) / 971] x 100
Subtract the new number by the original number
874 - 971 = -97
-97 ÷ 971 = -0.09989701338825953
-0.09989701338825953 x 100 = -9.99%