Do some data entry

I have some work, in an Excel spreadsheet. Cash Flow App INPUTS Inv. Amt, Date, Terms, Supplier, Local, Overseas, import taxes (iDuty, RRC, ABST) Weekly cash sales, and collections Payment method 100%, 50%, 33.33% or 25% and the date to be paid PROCESSES Allocates invoices and amounts due to their respective week Converts USD to Local currency @ 2.7169 OUTPUTS Payments due by Suppler by week, month, quarter