-86.07% is the change from 488 to 68
Calculation steps:
[( 68 - 488 ) ÷ 488] x 100 = -86.07%
Formula
Percentage change = [(68 - 488) / 488] x 100
Subtract the new number by the original number
68 - 488 = -420
-420 ÷ 488 = -0.860655737704918
-0.860655737704918 x 100 = -86.07%