Common market screwing with my mind

So, common markets...Trying to make it so my little empire of me and an ex c3 are supplying my country as much as possible.

I went through and set the quantity reserved percentage to 90% in both countries CM screens, set up all my contracts for country and companies in both countries, then go back and either don't touch the amount reserved if its at 90% and if its lower I round up the contract amount percentage up to the closest 5% mark (and in some cases like the schools companies I inherited at the CM lower limit of 10%).

Now my problem is this: I whip out my calculator and go to town. For example, in my slave's CM screen right now is a coal plant. Its estimated production is 1.8 million whatsits. Ok, amount already accepted is 66.11%, no problem, I'll enter 1260000 (70% for the record) in offered in contracts column. Repeat down the list as needed.

Hit confirm.

Screen loads back up and my coal company is now offering 2197500 units...wait..what? And the amounts I entered in every bloody single column that was selling below 90% have been tweaked to funky (as in no relation to what I entered) numbers too, and the ones that where selling 90% are all way the hell over the estimated production rates. Mind, there are one or two that actually took the numbers I entered and kept them (which is really messing with my mind...).

So...what the hell is happening here. I'm actually getting annoyed with this since I've gotten to the point where I don't even need the calculator because I wrote the numbers down after the 10th or 12th time of doing this. And I haven't even gone over to my main and tried this yet with its 3 or 4x the amount of corporations because no matter how much I enjoy the anal retentiveness of making my percentages rounded off (I really do), I don't want to do all over and over and over and over...ad nauseam...

Someone with more nerd mojo then me tell me what the hell I'm doing wrong and how to go about fixing it so I can get back to making numbers fit into my happy places >.>

Mine too. My offerings keep ending up at well over a 100% of total.

Well, carp...I though I figured it out by entering every single entry, no matter if it was staying the same or not.
...except that only worked one single time, tried it in main and it screwed up like normal, went back to slave and tried it again...screwed up like normal...
Odd that the one time the screen works as advertised would be a 'fluke'...anyone else have any ideas on how to make this do what I want?

Slightly screwy semi-solution thanks to aeries(sp...) and chat:
Bugger the CM screen and trying to adjust amounts there. In my case, I set to 90% on the CM offered screen, set up all the contracts through the other CM screens, came back and clicked on every bloody percentage under 'Already Accepted' which took me to contracting screen for said company. Where I then retracted the remaining amount offered.

So, for all and sundry, this is how you sort of 'fix' the problem.

I'm having difficulty understanding the problem.

If your country offering too much into the common market?

I'm a founder and leader of a common market. They can do that.

Check the common market settings, they require a minimum to be invested into the common market.

I only require my members 10% to be offered eachother.

However, there are a few who require complete interdependence and separation from local and international markets.

Star, call a vote to increase it 20%

what works for me, is to set it to 100%, and just leave it alone. works for me really well.

...Your telling me about being confused Star...What I wrote in the first post is pretty well explained and in proper english with all the trimmings and a second look in preview. In your case, I really aren't sure what you are talking about since I wasn't aware that countries can sell their goods on a common market...

And Josias, ya, I thought about that ;)
I just wanted my poor corps to actually make a dash of actual profit instead of the not as profity direct sales to my country and their fellow corps through the common market. It actually seems to work out well since the common market 'offer up your goods' screen is apparently basing its percentages off the "estimated production" which is hilariously (most of the time) lower then the actual production. So far the 90% of the estimated production seems to give the corps a nice buffer of goods to actually sell for good profit.

I'll tell you in a few months if I still think that as the evidence piles up some more :D
(That, and seriously, 100% setting is too easy!)