How much better off would I be if only 171 million neurons died during my stroke?

Your doctor should give you this exact same calculation, then you could sue for any damage beyond delivery of tPA.  This calculation proves the fucking failures of our stroke associations. our doctors and stroke hospitals. Money might be the only way to change this, professional responsibility and the Hippocratic Oath are not working. They are doing nothing to solve this neuronal cascade of death. 

1 million dollars per dead neuron sounds like a good amount to ask for.  

This is over the top but unless you don't want change to occur we have to impress upon the medical world how incompetent they are.

Approximate death rates; Your doctor will know exactly.

In each minute,

1.9 million neurons die

14 billion synapses die

12 km (7.5 miles) of myelinated fibers die

brain ages 3.6 years each hour without treatment

I got to the  hospital in 30 minutes, 60 more minutes until I got tPA, no other treatment at all.  I'll be conservative and estimate that for the next two days that the neuronal cascade of death was proceeding at half the normal rate, and days 3-7 at one quarter rate. A medical person could chime in here with research pointing to death rates of the penumbra during the first week.

Day 1,: first 90 minutes:
171 million dead neurons 
1.260 trillion dead synapses
675 miles of dead myelinated fibers
Brain aged 5.4 years
Days 2-3
So 1440 minutes a day * 2days * 950000 = 2,736,000,000  or 2.7 billion  dead neurons
  1440 minutes a day *2days * 7,000,000,000syn = 20,160,000,000,000     20.2 trillion        dead synapses
1440 * 2days * 3.75mi = 10800 mi  dead myelinated fibers
Brain aged - 2 years, a guess

Days 4-7
So 1440 minutes a day * 4days * 475000 = 2,736,000,000  or 2.7 billion dead neurons
  1440 minutes a day *4days * 3,500,000,000syn = 20,160,000,000,000 20.2 trillion    dead synapses
1440 * 4days * 1.875mi = 10800 mi  dead myelinated fibers
Brain aged - 2 years, a guess 
This is one hell of a lot of damage to recover from. Especially since we don't know how to move functions from dead locations to new ones.  Or know how to usefully get neurogenesis to work.
Totals:
5.571 billion dead neurons
4.041260 trillion dead synapses
 22,275 miles dead myelinated fibers
Brain aged -  9.4 years
The brain contains 80 billion neurons, I only lost 6.96375% of my brain.  
My charge would be $5.57100000E+15, whatever that is in real terms, beyond my calculators capacity.