Before calculating
Prepare Metal value, Making charge method, Making charge value and GST rate verified for the invoice scenario. Review the formula and assumptions shown for this jewellery making charges calculator. Choose percentage or fixed making charge, then enter metal value, charge, and verified GST rate. Calculate and review subtotal, tax, and total separately. Use the actual BIS details and tax invoice for a purchase or exchange. Keep units, dates, currency, and time periods consistent.