>>> The more you sell, the more tax you pay. Period. <<<

This is categorically not true.  Sales (stocktake or otherwise) often result in products being sold below cost.  Selling a product below cost will REDUCE your tax liability.

There are many reasons why one might want to do that. 

• Improving cash position. 
• Clearing obsolete products. 
• Making space for new inventory in stores or warehouse. 
• Hitting supplier rebate targets

Your reply is exactly why sellers should not be seeking financial or accounting advice from anybody other than trusted professionals.