Three sales. The group counts one.
1Quarry
The quarry sells the block to the factory.
In one click, €5,200, between them.
2Factory
The factory sells the slabs to the trading company.
34 slabs, €11,600. The block keeps its identity.
3Trading
The trading company sells to its clients.
€17,900: the only sale outside the group.
4The group
The group counts €17,900, not €34,700.
Sales between the companies drop out by themselves.






