Profit and Loss Important Formulas - Aptitude Questions and Answers Cost Price: The price, at which an article is purchased, is called its cost price, abbreviated as C.P. Selling Price: The price, at which an article is sold, is called its selling prices, abbreviated as S.P. Profit or Gain: If S.P. is greater than C.P., the seller is said to have … [Read more...] about Profit and Loss Important Formulas – Aptitude Questions and Answers