”Eton's is 10% off the fees, Winchester's carries no value, at SPS its worth £60. . .”
Didn’t know Winchester’s such a scrooge, HG. And £60 - St. Paul’s? Gee, what can you do with that? A meal at McDonald’s, perhaps.
Eton’s scholarship award used to be 100% off the fees in times past. Then it was halved not that long ago and quickly halved again. In order to release more funds to help more people, the scholarship award is now down to 10% off the fees in line with most schools.
But you brilliant guys with scholarship potential need not fear about all this reduced scholarship financial awards. In addition to the scholarship award, a needy pupil can apply, and almost always granted, a full bursary up to 100% or greater i.e. allowances for free uniforms, books, music lessons (more than one instrument if applicable) and even pocket money. Let’s face it, this is undoubtedly better than Father Christmas! 
I often tell parents school fee’s about the last thing they should worry about if their sons can get a scholarship to Eton.
Happy Christmas!