-81.15% is the change from 679 to 128
Calculation steps:
[( 128 - 679 ) ÷ 679] x 100 = -81.15%
Formula
Percentage change = [(128 - 679) / 679] x 100
Subtract the new number by the original number
128 - 679 = -551
-551 ÷ 679 = -0.8114874815905744
-0.8114874815905744 x 100 = -81.15%