Hello, asspee-balakrish.
The option to update the products' prices in bulk is currently not available. To modify the prices, you need to edit the amount manually by opening each item from the Products and Services window.
For the time being, I recommend searching for a third-party application from the apps store that can manage updating prices at once.
I can see how important this feature for you and other business users. Rest assured that our engineers are working nonstop to enhance the product for our customer's convenience.
Furthermore, I'd recommend sending your feedback to our product development team. This way, they can review it and might consider adding this in our future updates.
Also, here's an article you can read more about managing stocks in QuickBooks Online: Set up and track your stock in QuickBooks Online.
If there's anything else you need help with about your products and services or with your QBO account, please feel free to add them in your reply. I'll be more than happy to back you up anytime. Keep safe.
