From Longman Business Dictionary
costingcost·ing /ˈkɒstɪŋˈkɒːst-/ British EnglishBrE noun [countableC, uncountableU]ACCOUNTING the process of calculating the cost of a future activity or product, or the calculation itselfRailtrack originally said the scheme would cost £100 million, but last year produced revised costings of £350 million.
→ absorption costing → batch costing → job costing → marginal costing