-13.29% is the change from 971 to 842
Calculation steps:
[( 842 - 971 ) ÷ 971] x 100 = -13.29%
Formula
Percentage change = [(842 - 971) / 971] x 100
Subtract the new number by the original number
842 - 971 = -129
-129 ÷ 971 = -0.13285272914521112
-0.13285272914521112 x 100 = -13.29%