>> if you bought the stock at .02 and it goes to .08 it has gone up 400% if it goes to .10 that's 500%. >>
Common mistake on these threads. You have to subtract the 100% you started with. .02 to .08 is a 300% rise, not a 400% rise. The rise is (.08 - .02) = .06 which is 300% of .02.
>> if the stock is at .075 a double to .15 would be a 100% move from .075 but a 750%increase from .02 >>