-18.85% is the change from 971 to 788
Calculation steps:
[( 788 - 971 ) ÷ 971] x 100 = -18.85%
Formula
Percentage change = [(788 - 971) / 971] x 100
Subtract the new number by the original number
788 - 971 = -183
-183 ÷ 971 = -0.18846549948506694
-0.18846549948506694 x 100 = -18.85%