-91.56% is the change from 971 to 82
Calculation steps:
[( 82 - 971 ) ÷ 971] x 100 = -91.56%
Formula
Percentage change = [(82 - 971) / 971] x 100
Subtract the new number by the original number
82 - 971 = -889
-889 ÷ 971 = -0.9155509783728115
-0.9155509783728115 x 100 = -91.56%