Steel TMT RebarCost Calculator

This app is for sellers of steel rebars.With the help of this app sellers can serve their customers faster and more efficiently.
Sellers can enter the number of rebar pieces and the app will calculate the total amount.
Sometimes sellers have to keep changing the number of pieces according to customer's need and have to recalculate the amount,discount amount and total amount every time.This can cause error in calculation and also takes time.In this app seller just have to change the number of pieces and the app will calculate the amount of each section,total amount,weight of each section,total weight and discount amount.Thus providing a faster and accurate estimate of consumer demand.
Also,sometimes a consumer's requirement for individual segment is in kilograms,quintols or in tonnes,while rebars for many brands are sold in pieces.Sellers have to manually calculte the number of pieces equivalent to quantity in kilograms,another error prone and time consuming process.
In this app sellers just have to enter the quantity in kilogrmas and app will convert this quantity in kilogram to number of pieces.
Users first have to set the price for each section of TMT Rebar. 
App assumes that each rebar is of length 12 meters.

Users can upgrade for following additional features:
1.Users can use and get estimate for three brands.
2.Users can share estimate in text format via message or any other application.
3.Pieces calculated or converted from kilograms can be used or transferred directly to calculate amount.
4.Sellers have to generate bill or invoice in weight and also show the tax amount separately while the rate is in pieces and includes tax amount.Converting rate in pieces to rate in kilograms and also incorporate tax is another hectic and error prone task.App can help users by generating a bill or invoice with tax amount.