-75.55% is the change from 679 to 166
Calculation steps:
[( 166 - 679 ) ÷ 679] x 100 = -75.55%
Formula
Percentage change = [(166 - 679) / 679] x 100
Subtract the new number by the original number
166 - 679 = -513
-513 ÷ 679 = -0.7555228276877761
-0.7555228276877761 x 100 = -75.55%