I've made a formula to calculate the difference between two decimal fields for example:

12.13 = 12 stones and 13 pounds

Now I would like to calculate the difference between two stone & pounds decimal fields. The script I've written is below.

The problem is 0.14 pounds is 1 stone. So in the below formula I got a problem with the following outcome:

1.15. Actually this has to be 2 stone and 0,01 pounds.

How could I resolve this?

//Calculatie today's weight loss in stones and lbs

//Stones&LBS to stones Current Weight

Stones_CW = (row.Current_Weight.toLong()  *  13.5);

LBS_CW = ((row.Current_Weight  -  row.Current_Weight.toLong())  *  100);

CW = (Stones_CW  +  LBS_CW);

//Stones&LBS to stones Today's Weight

Stones_TW = (row.Today_s_Weight_st_lbs.toLong()  *  13.5);

LBS_TW = ((row.Today_s_Weight_st_lbs  -  row.Today_s_Weight_st_lbs.toLong())  *  100);

TW = (Stones_TW  +  LBS_TW);

//Calculate difference between CW and TW

Difference = ((TW  -  CW)  /  13.5);

Stones_DF = Difference.toLong();

LBS_DF = ((Difference  -  Stones_DF)  *  0.135);

row.Weight_Loss_Today = (Stones_DF  +  LBS_DF);

//Calculatie total weight loss in stones and lbs

//Stones&LBS to stones Starting Weight

X  =  Members  [ID = row.Select_member];

Stones_SW = (X.Starting_Weight_st_lbs.toLong()  *  13.5);

LBS_SW = ((X.Starting_Weight_st_lbs  -  X.Starting_Weight_st_lbs.toLong())  *  100);

SW = (Stones_SW  +  LBS_SW);

//Stones&LBS to stones Today's Weight

Stones_TW1 = (row.Today_s_Weight_st_lbs.toLong()  *  13.5);

LBS_TW1 = ((row.Today_s_Weight_st_lbs  -  row.Today_s_Weight_st_lbs.toLong())  *  100);

TW1 = (Stones_TW1  +  LBS_TW1);

//Calculate difference between CW and TW

Difference1 = ((TW1  -  SW)  /  13.5);

Stones_DF1 = Difference1.toLong();

LBS_DF1 = ((Difference1  -  Stones_DF1)  *  0.135);

row.Total_Weight_Loss = (Stones_DF1  +  LBS_DF1);