The purchase will roughly double the Japanese company's yearly copper output.
This will roughly double the number of people PWC has in foreign postings today.
Things may well look very different in a year's time, when the turnout will roughly double.
City authorities project that revenues from hated court fines will roughly halve this year.
So Mr Brown can be more confident that the budget will roughly balance over the economic cycle.
No matter what route is chosen, maintenance costs will roughly double, it said, adding 10 percent to production costs.
Getting remote Putumayo's cocaine to the Caribbean coast will triple its cost to $3,000 a kilo; the price will roughly triple again when it reaches Miami.
The United Nations estimates that sub-Saharan Africa's population will roughly triple over the next half-century, to about 2.7 billion.
But the big rise comes from wind and solar: the government will roughly double investment in these two in 2011-16, compared with 2006-10.
Admittedly, there is a rising chance that he will (roughly 20 per cent say the bookies), and the received wisdom has shifted.
If the number of types of chocolate known at each stage is plotted on a graph, it will roughly correspond to a mathematical curve called a hyperbola.
