The total value of the transaction in the smallest unit of the currency specified. E.g. $10.01 meaning ten dollars and one cent would be submitted as 1001. Note that this value includes any cashback portion that may be set. If the sale is for $10.00 and the cardholder wants cashback of $5.00 then the value set in this field would be $15.00 which, without the decimal, would be 1500.