Tier1 entreprenuer visa Application formquestion(page24-G10)

[rajeev1]

Hi friends
i am applying visa next week.i am showing 5ok through third party in india and took a letter from bank as well confirming the funds.In the bank letter they mentioned the amount in GBP based on that day exchange rate.In Application form question(page24-G10) they are asking
G10. You must complete the following table to confirm the documents provided to
demonstrate the funds available for investment. One line (line 0) is completed as an
example only.
Source no Letter or account details from financial
institution, or accountant letter
Name of institution or accountant
Amount of money available in
Pounds Sterling
0 Bank of Somewhere £X0,000

In this question they are asking to mention the funds from third party in GBP. Do I fill this according to Exchange rate based on bank letter or based on Exchange rate calculating on Application date? Plz anyone give me reply?
thanks