The savings _ from using your "in house" expertise _ in terms of money and man_hours alone, will quickly justify the investment you make in "developing the needed skills" _ especially, when you compare what you spend with the cost of purchasing a commercial software application _ or even engaging the services of an Excel VB developer.
"Over_used/Over_spent"(Losses) and "Under_used/Under_spent"(Savings) _ on a monthly basis based on data entered, the program also automatically plotted charts showing trends over a 12 month period.
How A Well Known Corporate Multinational Used Spreadsheet Tracking/Automation To Repeatedly Cut Spending _ And Increase Profits. During my graduate training(while in paid employment), I was redeployed from Guinness Nigeria Plc's corporate headquarters training office(in Lagos) to the Benin brewery training department (in Edo state), where I was assigned the _ additional _ job of using a custom Lotus macros driven Variable Cost Analysis spreadsheet application to generate brewery reports for dispatch to headquarters.
You will find this article of considerable reading value, if you belong to at least ONE of the following spreadsheet user categories: Owners of Small Businesses _ Restaurants/Bars, Hotels, Hospitals, Factories, Consultants etc; Decision Makers/Job Holders in Corporations _ Materials Managers, Sales/Marketing Analysts, Financial Analysts/Accountants, Project Engineers; And Anyone desiring to make BETTER sense _ and use _ of data!