-98.82% is the change from 339 to 4
Calculation steps:
[( 4 - 339 ) ÷ 339] x 100 = -98.82%
Formula
Percentage change = [(4 - 339) / 339] x 100
Subtract the new number by the original number
4 - 339 = -335
-335 ÷ 339 = -0.9882005899705014
-0.9882005899705014 x 100 = -98.82%