OK, if it was only formula to calculate point please explain me this:
When I wanted to build Metal Mine lvl 28 I needed: Metal: 5.113.362 Cristal: 1.278.340 (before change)
Now to build Metal Mine lvl 29 I need: Metal: 5.113.362 Cristal: 1.278.340
I'm sure because I have long term plan for buildings depending on resources that I have/will have.
So it means, that if I will spent my lost 157785 points (much thanks @mys for calculation!) on ie. fleet I won't lost it.
Maybe I'm wrong, but I think that building cost was changed too (I'm not sure about techs).