-87.33% is the change from 971 to 123
Calculation steps:
[( 123 - 971 ) ÷ 971] x 100 = -87.33%
Formula
Percentage change = [(123 - 971) / 971] x 100
Subtract the new number by the original number
123 - 971 = -848
-848 ÷ 971 = -0.8733264675592173
-0.8733264675592173 x 100 = -87.33%