-73.61% is the change from 485 to 128
Calculation steps:
[( 128 - 485 ) ÷ 485] x 100 = -73.61%
Formula
Percentage change = [(128 - 485) / 485] x 100
Subtract the new number by the original number
128 - 485 = -357
-357 ÷ 485 = -0.7360824742268042
-0.7360824742268042 x 100 = -73.61%