Please take this in the spirit it is intended.
If the amount of money sent = S and the amount of money received = R
Then
R = S - 0.2 - (S x 3.6%)
So
R + 0.2 = S(1 - 0.036)
Which means that
S = (R + 0.2) / 0.964
That is all assuming the 3.6% is charged on the 20p fixed charge which I assume it will be.
Much easier to use the web site to calculate it for you.
And yes I am a bit of a geek.
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Team C TC02c - My son breaks it, I fix it.
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