The claims I make above are NOT exaggerated. They are in fact based on my personal experiences doing the foregoing (a). As an manager in the challenging, fast_paced manufacturing work environment of a corporate multinational (b). As a solutions developer for individuals and businesses who use MS Excel for their work.
VBA is therefore different from the Standalone Visual Basic program used(by professional programmers) for developing commercial quality software applications _ though it borrows many of the latter's features. Think of Excel VBA as being the standalone Visual Basic software, built into Excel for the benefit of Excel users who are not necessarily programmers, but who are keen to exert more control over the application. So, Excel VB offers any interested users the necessary tools to make the application deliver more functionality. The final product is still an Excel document, but with extra functionalities added using VBA.
For instance if a company had five drink brands in the market but notices that Brand A, which has a profit margin of at least twice the others is in greatest demand, they could (a) focus production efforts on that brand, so that more bottles go out to trade (b) Apply Best Practice/Continuous Improvement initiatives that would result in lower costs of producing each bottle of Brand A so that even though the market price remains fixed, the company is able to earn increasing profit margins per bottle.
One Possible Application: Plotting a pie chart based on income contributions from all your products and services(daily, weekly or monthly), and reviewing the automatically computed percentages/visual pie slices, can give very illuminating insight.