-79.01% is the change from 791 to 166
Calculation steps:
[( 166 - 791 ) ÷ 791] x 100 = -79.01%
Formula
Percentage change = [(166 - 791) / 791] x 100
Subtract the new number by the original number
166 - 791 = -625
-625 ÷ 791 = -0.7901390644753477
-0.7901390644753477 x 100 = -79.01%