Startup Idea: Website Product Price Adjustment Software

Startup idea to develop a batch-processing software, designed to work alongside website builders, enabling mass product price adjustments through a spreadsheet-style interface. The software should allow webmasters to adjust prices for huge product lists on one page and apply them instantly to their websites, bypassing the tedious task of making individual price changes.

I am a Webmaster at a music store, and the tedium that I face when trying to adjust prices for instruments with specific model numbers is frustrating.

I wish there was a software specifically built for use with website builders that would allow a spreadsheet-style approach for price adjustments on big lists of products, instead of having to change these prices piece by piece. A single page where I could make all of these edits in a short, concise manner and then instantly apply them to my website would be awesome.