18-pounder ammunition requirements were predominantly shrapnel during 1916, although in the latter part of the year it shifted back to equality between HE and shrapnel. In July 1916, standard contract prices for UK produced shells were 12 shillings and 6 pence (62.5 pence in modern terms) for HE and 18 shillings and 6 pence for shrapnel. US and Canadian prices were significantly higher. The lowest price achieved for 18-pounder HE shells was 8 shillings and 11 pence (44.8 pence) later in 1916.