-76.58% is the change from 679 to 159
Calculation steps:
[( 159 - 679 ) ÷ 679] x 100 = -76.58%
Formula
Percentage change = [(159 - 679) / 679] x 100
Subtract the new number by the original number
159 - 679 = -520
-520 ÷ 679 = -0.7658321060382917
-0.7658321060382917 x 100 = -76.58%