-13.18% is the change from 971 to 843
Calculation steps:
[( 843 - 971 ) ÷ 971] x 100 = -13.18%
Formula
Percentage change = [(843 - 971) / 971] x 100
Subtract the new number by the original number
843 - 971 = -128
-128 ÷ 971 = -0.13182286302780638
-0.13182286302780638 x 100 = -13.18%