-80.65% is the change from 429 to 83
Calculation steps:
[( 83 - 429 ) ÷ 429] x 100 = -80.65%
Formula
Percentage change = [(83 - 429) / 429] x 100
Subtract the new number by the original number
83 - 429 = -346
-346 ÷ 429 = -0.8065268065268065
-0.8065268065268065 x 100 = -80.65%