Friends please is it through that the embassy uses the exchange rate of the day you submit your visa application documents to judge or the rate of the day the money was fully deposited? kindly help a brother please.

Please friends I need a little help, after paying my complete tuition fee the school requested I send my statement of account in other to issue CAS. Now the thing is this, I started counting 28 days from 17th August when 11385pounds was equivalent to 4.7m. I sent the statement today and as at today it has increased to about 4.9m, will the increment affect me? Thanks.