Write a management accounting program

Good afternoon!
Programmer services are required. You need to write a program of management and financial accounting in the organization. There are several warehouses, each has its own cash register. At the end of each day, warehouses provide a report on the purchased and sold goods, cash register movement, movements, etc. The data obtained are drawn up in a consolidated warehouse report and a financial statement of cash flows. Reports are formed by the end of the day and summary for the month, year. Currently, the accounting is maintained in the exel tables.