Albion are on course for one of the biggest crowd jumps in Football League history – thanks to The Amex expansion.

If the Seagulls maintain their present average of 25,446, the increase will be almost 250% compared with 7,351 at Withdean in 2010-11.

That would be the third largest leap in attendances over a two-year period since league football started in 1888 according to Football Economy.Com, the economy of football website.

Albion’s average attendance in the Championship last season, their first at The Amex, was 20,027. The capacity has increased to around 27,500 since then and will rise further to 30,750 by March.

The biggest two-year leap in attendances was at Millwall from an average of 4,034 in the second tier in 1986-7 to 15,416 in the top division in 1988-89, a rise of 258 per cent.

Northampton's increase of 246 per cent to 6,316 over two seasons to 1986-87 is the second biggest but Albion will overtake that if they improve their current average by ten.