Copy & Paste if condition met with add & subtract

[MoldyBread]

Hi Experts,
I am looking for a macro that will do the things mentioned below

there are 3 files 1.xls & BasketOrder.xlsx & macro.xlsm (macro will be placed in macro.xlsm),both files are loacted in diffrent places so the path will be hardcoded in the macro so that i can change it as per my needs
sheet name can be anything
plz see the sample file


If column C of basketorder.xlsx matches with column B of 1.xls & Column J is BUY then add 0.05 to column D of 1.xls & compare column L of basketorder.xlsx with column D of of 1.xls & if column D of 1.xls is lower then Column L of basketorder.xlsx then replace column L data with column D data OF 1.xls

If column C of basketorder.xlsx matches with column B of 1.xls & Column J is SELL then subtract 0.05 to column D of 1.xls & compare column L of basketorder.xlsx with column D of of 1.xls & if column D of 1.xls is greater then Column L of basketorder.xlsx then replace column L data with column D data OF 1.xls




Thnx for the Help