Hello lovely folks,

CHARGES CALCULATION FOR A SHOPPING WEBSITE FORM:
Basically is a shopping website that allows visitors to calculate charges in 1 currency, converts it to another currency and add shipping cost and finally displays the totals.

I am trying to build a calculation form that basically pick a data from one field lets say "Field1" multiply it
by data in another field, lets call it "Field2". The result is stored in hidden field "Total_1".

Then again at the same time, i want to multiply "Total_1" by a decimal figure lets say "3.021" and store it in another hidden field lets say "Total_2" and add another figure in or not in decimal lets say 49.50 store it in another hidden field "Total_3".

Then through the Thank You form i will display , Total_1, Total_2 and Total_3.

My code so far is:

---

onclick="document.getElementById('Total_1').value = parseFloat(document.getElementById('qty').value) * parseFloat(document.getElementById('price').value)

document.getElementById('in_ghc').value = parseFloat(document.getElementById('Total_1').value) * 3.0150;"

---

Code for displaying totals in Thank You form is for eg. {Tital_1:value}


I have only managed to get the first total, cant seem to get the second or 3rd to either calculate or display result.
Please i know its a bit complex than what its usually , but i am stuck with the project and dont know what to do whether its even possible with RSForm pro.