what???? i think your confused man... its a simple math problem probelm, try to put words to it...
(.0002*1000)= .20 presplit value at 1000 shares = 1
take $.20 and take the difference of the share price currently and the post split price.
$.20 - $.08 = $.12 DIFFERENCE
now to find the actual percentage, you must find how big the difference is in relation to the original price. You can relate it to a single day price move of .20 cents to .08 cents. a 60 % drop.
.12/.2 = .6
Just so its clear, you can never lose more than 100% on a stock investment