Copying Data And Pasting Data To Update Database

I have a workbook with a database of 15 different products. We receive information with current prices for each of the 15 products on a weekly basis. This info comes in one single worksheet. I have created a different file with one worksheet for each product to track price behavior over time. I need to update these database everytime I get a new report. What I was trying to do is to develop a Macro to copy the data from a "Master" worksheet that includes all 15 products info to the respective worksheet for each product. Information is sorted in columns having the most recent date in the lowest column. I would need the Macro to copy the new data below the last price for each product. I would copy the data into the "MAster" worksheet, then run the Macro who would copy each row and paste it in its respective worksheet in the row rightafter the previous one.