KiSSFLOW supports most Excel functions and formula. The formula allows users to perform operations such as multiplication, addition, subtraction and division on data entered in the form, while functions allow users to use pre-defined formula that performs calculations by using specific values passed as arguments.

Formula can be written on number fields to perform mathematical operations such as multiplication, addition, subtraction and division. 

For example, if the form contains the number fields 

Travel_Expense
​Stay_Expense
​Misc_Expense

Then the total expense can be calculated by writing the formula 

in a field called Total_Amount.

​

Just as in Excel, the dates are stored as integers and the times are stored as decimal values. Therefore, to compute the difference between two dates and times, you can simply subtract these values in the same way you would subtract two numbers. For example, if Leave_Start_Date and Leave_End_Date are fields in the leave request form, then the number of days leave requested can be calculated by writing the formula: