-18.54% is the change from 971 to 791
Calculation steps:
[( 791 - 971 ) ÷ 971] x 100 = -18.54%
Formula
Percentage change = [(791 - 971) / 971] x 100
Subtract the new number by the original number
791 - 971 = -180
-180 ÷ 971 = -0.18537590113285274
-0.18537590113285274 x 100 = -18.54%