I wanted to try and unravel how much the PBO (from link in post 1875) actually thinks the build cost for the CSC will be. This was not really necessary as they list the individual build cost on page 19 as $1.9B Canadian in 2019 dollars. This is not the true cost however. The budget includes HST of 15% (so they are charging themselves 15% more and then giving the extra money back to themselves - in normal business this is called a kickback, I've had suppliers try that game with me - they don't last as suppliers of mine). So the actual cost is $1.65B. This is in CAD, since most references are in USD, the conversion is $1.24B USD (using 75 cents US:100 CAD). For comparison, the Burke is estimated to cost $2B each.
The $69.8B total cost is broken down to $5.3B preproduction cost, $53.2B production cost and $11.4B post production (spares etc). So how does $1.9B each inflate up to $53.2B for 15 ships? First off, that is the 9th ship cost, not the first ship cost, and there is an assumed 77.5% learning curve, meaning every doubling of the number of ships the cost is reduced by 77.5%. So the cost for the individual ships is:
1 4.26B
2 3.30B
3 2.85B
4 2.56B
5 2.36B
6 2.21B
7 2.08B
8 1.98B
9 1.90B
10 1.83B
11 1.76B
12 1.71B
13 1.66B
14 1.62B
15 1.57B
On top of this, they are not reporting in 2019 dollars, they are reporting in then year dollars. This would not typically be done by any business and most people do not understand it. It is done by the govt so that they do not have to adjust spending bills every year for inflation. Inflation is assumed to be 1.1% above the CPI inflation of 2.1% for 3.2% total. The 1.1% is a military shipbuilding premium based on historic costs.
The PBO assumes the first ship will start in 2024 and be delivered in ~2025, with the last ship delivered in 2043; a 20 year program (I had to guess on the first delivery date and had to use 2025 to reproduce their numbers). once the inflation is added to the 2019 cost, the total cost comes out to $53.2B
So govt math makes 1.24B USD (comparative cost) turn into 3.55B CAD. They post this and everyone in Canada says "why don't we just buy a Burke, it would be only 2B for a way better ship". But if you do the same math on the Burke you actually get 5.73B each.