-66.39% is the change from 485 to 163
Calculation steps:
[( 163 - 485 ) ÷ 485] x 100 = -66.39%
Formula
Percentage change = [(163 - 485) / 485] x 100
Subtract the new number by the original number
163 - 485 = -322
-322 ÷ 485 = -0.6639175257731958
-0.6639175257731958 x 100 = -66.39%