-73.86% is the change from 329 to 86
Calculation steps:
[( 86 - 329 ) ÷ 329] x 100 = -73.86%
Formula
Percentage change = [(86 - 329) / 329] x 100
Subtract the new number by the original number
86 - 329 = -243
-243 ÷ 329 = -0.7386018237082067
-0.7386018237082067 x 100 = -73.86%