Commodities have predefined lot sizes (set by the respective exchanges as per existing regulation) where current price of a particular commodity, for selected expiry, is shown in contract information available & rate units differ for different commodities. The standard unit based on which the price of the contract is quoted for trading is called quotation or base value. E.g. for gold contract, the quotation or base value is 10 grams while it is 1 kg in case of silver on MCX.