costing vs quotation

costing

noun
  • The estimation of the cost of a process or product. 

quotation

noun
  • The act of setting a price. 

  • A fragment of a human expression that is repeated by somebody else, for example from literature or a famous speech. 

  • A price that has been quoted for buying or selling. 

How often have the words costing and quotation occurred in a corpus of books? (source: Google Ngram Viewer )