-97.22% is the change from 971 to 27
Calculation steps:
[( 27 - 971 ) ÷ 971] x 100 = -97.22%
Formula
Percentage change = [(27 - 971) / 971] x 100
Subtract the new number by the original number
27 - 971 = -944
-944 ÷ 971 = -0.972193614830072
-0.972193614830072 x 100 = -97.22%