Last year, we raised almost £15,000. This year we raised about half as much again.
You could earn half as much again if you worked for a private company.
A house in London would cost half as much again as my house in Oxford and be much smaller!
This recipe makes eight rolls, but I usually adjust the recipe so I can make half as much again.
Overseas students have higher fees, and also need to pay half as much again for accommodation.
See also: half noun pronoun predeterminer adjective adverb