how much percocet is the equivalent to apprx .68 mg of sub? (so under a milligram). Trying to get off the subs, only have pieces left and prob will need some percs to get completely over it with minimal to zero WD. I just can't take time off from work and I have a physical job. The level of .68 keeps me normal. I've been on this amount for about 6 months. Started at 2 mgs, but quickly dropped to 1 mg.