-8.55% is the change from 971 to 888
Calculation steps:
[( 888 - 971 ) ÷ 971] x 100 = -8.55%
Formula
Percentage change = [(888 - 971) / 971] x 100
Subtract the new number by the original number
888 - 971 = -83
-83 ÷ 971 = -0.0854788877445932
-0.0854788877445932 x 100 = -8.55%