-79.71% is the change from 971 to 197
Calculation steps:
[( 197 - 971 ) ÷ 971] x 100 = -79.71%
Formula
Percentage change = [(197 - 971) / 971] x 100
Subtract the new number by the original number
197 - 971 = -774
-774 ÷ 971 = -0.7971163748712667
-0.7971163748712667 x 100 = -79.71%