Firstly, thanks for help. I copied your suggestion in my program, it works but still have a problem. The user will input the X in a text box of a grid. The text box width is 6. If the user inputted 10.99, the program will get the 99. But if I inputted 1.99, it will get 9. If I inputted 111.99, it will get 11.99. I don't understand why, how can I solve this problem?

>The only consistent way to make this work is to
>set the input variable as a character expression
>such as "10.1" so that there is no confusion between
>10.1 and 10.10 etc.
>
>So, try the following code.
>
>** X is your input expression
>X = "10.8"
>** Y is your numeric output expression
>Y = INT(VAL(X)) + VAL(RIGHT(X,RAT(X,".")+1))/16
>** Z is your character output expression with 2 decimals of precision
>Z = TRANSFORM(Y,"999.99")
>Therefore Y = 10.5