-75.99% is the change from 329 to 79
Calculation steps:
[( 79 - 329 ) ÷ 329] x 100 = -75.99%
Formula
Percentage change = [(79 - 329) / 329] x 100
Subtract the new number by the original number
79 - 329 = -250
-250 ÷ 329 = -0.7598784194528876
-0.7598784194528876 x 100 = -75.99%