M-C-M is defined as Money-Commodities-Money. It is a concept found by the marxist theory that serves as a formula that defines most of the landscape of capitalism. In simple terms money (m) is used to obtain commodities (c) such as labor power and basic materials in order to therefore be exchanged into more money (m). One example to support this would be if a capitalist were to have to have 100 bottles of water bought at $100, and then each sold for $2, he would now have $100 dollars in profit.