-85.89% is the change from 971 to 137
Calculation steps:
[( 137 - 971 ) ÷ 971] x 100 = -85.89%
Formula
Percentage change = [(137 - 971) / 971] x 100
Subtract the new number by the original number
137 - 971 = -834
-834 ÷ 971 = -0.858908341915551
-0.858908341915551 x 100 = -85.89%