PTR (Price To Retailer): This is the rate at which the medical retailer purchases medicine from the stockist or distributor.

Formula to calculate PTR is:

PTR = (MRP - (MRP * (Retail Margin / 100))) / (1 + (GST / 100))

PTS (Price To Stockist): This is the rate at which the stockist purchases medicine from the pharma company.

Formula to calculate PTS is:

PTS = PTR - (PTR * (Stockist Margin / 100))