One Viral Load Log Drop

I'm sorry, math has never been one of my strengths so I need some help in the log calculation...
My viral load was at 4.3 million before treatment. My Hepatologist indicates that after 4 weeks they would like to see a 1 log drop to continue treatment.  What would the viral load need to be?  
Thanks!
Rebecca

[Boobert]

A log drop in viral load is measured by
decreasing the number by one zero. For instance, a
one log drop in a viral load of 1,000,000 International
Units is 100,000 International Units; a two log drop in
a viral load of 1,000,000 International Units is 10,000
International Units.

[can-do-man]

4,300,000 a one log drop would be 430,000. A 2 log drop would be 43,000 and so on.......... Just take one zero away for each log drop.

[HectorSF]

4,300,000 1 log drop 430,000

Drop one "0" for 1 log drop and two "00" for a 2 log drop.


Good luck with your treatment!
Hector

[HCVinPDX]

Thanks so much!  I tried to use a calculator online and saw the "x, y and =" and my head started to spin!