-83.28% is the change from 329 to 55
Calculation steps:
[( 55 - 329 ) ÷ 329] x 100 = -83.28%
Formula
Percentage change = [(55 - 329) / 329] x 100
Subtract the new number by the original number
55 - 329 = -274
-274 ÷ 329 = -0.8328267477203647
-0.8328267477203647 x 100 = -83.28%