-81.59% is the change from 429 to 79
Calculation steps:
[( 79 - 429 ) ÷ 429] x 100 = -81.59%
Formula
Percentage change = [(79 - 429) / 429] x 100
Subtract the new number by the original number
79 - 429 = -350
-350 ÷ 429 = -0.8158508158508159
-0.8158508158508159 x 100 = -81.59%