More information is needed.
For example:
https://answers.acrobatusers.com/How-I-change-prices-online-PDF-catalog-q77358.aspx
https://answers.acrobatusers.com/How-mass-update-pricing-Acrobat-Catalog-q234135.aspx
Are the shown prices truly numeric or just text values?
Is there a specific field somewhere that contains the current prices?
What other tools or software do you have available and know how to use: Excel, Access, Python, etc.... Or know someone who can do so?
Key is that there is some consistent way to identify price (hopefully in a field) and then be able to increase the current value by multiplying it by 1.10 to get the new price and then put that new price back into the price field.
Most importantly, be sure to have the original data backed up and put copies of the original .pdf price list into a test environment before trying any mass/global price updates.
Keep the original data separate and untouchable.
Once the price increases are successful and fully validated then swap in the new price list. Being sure to retain the old price list just in case....