We levy a few charges based on the net weight like loading charges, processing charges, etc. based on Tonnage value. However the Tax and Charges Template has option to select the charges based on Item Quantity but the charge rate per item quantity cannot be defined except as a percent. Eg. we levy Rs. 1000 per metric ton
as processing charges. How do we achieve this. The same goes for Purchase also. Also how can the same charges be rounded off to a nearest value.