-50.72% is the change from 485 to 239
Calculation steps:
[( 239 - 485 ) ÷ 485] x 100 = -50.72%
Formula
Percentage change = [(239 - 485) / 485] x 100
Subtract the new number by the original number
239 - 485 = -246
-246 ÷ 485 = -0.5072164948453608
-0.5072164948453608 x 100 = -50.72%