-99.39% is the change from 488 to 3
Calculation steps:
[( 3 - 488 ) ÷ 488] x 100 = -99.39%
Formula
Percentage change = [(3 - 488) / 488] x 100
Subtract the new number by the original number
3 - 488 = -485
-485 ÷ 488 = -0.9938524590163934
-0.9938524590163934 x 100 = -99.39%