Field type: Integer number
Integer number fields allow users to enter numbers ONLY
Example: phone number, number of stock/items, postal code
Field type: Decimal number
Decimal Number fields allow users to add numbers with decimal points
Example: Money, Weight, Height measurements
Field type: Calculated value
Calculated Value Fields automatically calculate number fields within the form, as defined in these settings.
Example: Total of units sold
Calculation Type (Add, Subtract, Multiply, Divide, Average): The type of calculation to be performed against the defined fields
Calculation Fields: the fields you wish to calculate. Only integer fields are available to be calculated.