Purchase amount for an authorization transaction.
This field contains the transaction amount to be authorized. The transaction amount is presented in US Dollars with a decimal point in the proper position. If no decimal point is included, it will be assumed that the transaction amount is in whole dollars.
NOTE: For the 3DSI, TrustCommerce, PayFuse, Orbital, Ogone, and Optimal gateways, this value must be submitted as the number of cents without a decimal point. For example, a dollar value of "1.00" would equate to "100" for these gateways.