-13.7% is the change from 971 to 838
Calculation steps:
[( 838 - 971 ) ÷ 971] x 100 = -13.7%
Formula
Percentage change = [(838 - 971) / 971] x 100
Subtract the new number by the original number
838 - 971 = -133
-133 ÷ 971 = -0.13697219361483007
-0.13697219361483007 x 100 = -13.7%