You want to set a special price to several products and reduce it by a specific percent (%), but you products are having several options, each of which is also having different price, but opencart does not offer the opportunity to set discount on the options. This is the right extension that will help you in this situation.
The extension calculates the percent (%) discount you've set based on the original normal price and the set special price and then adds the same discount to the options of the products, that you've set the special price on.

Example:

You Have a product with a normal price 100
The product has several otpions:
Option A: Price + 0 -> Final Price 100
Option B: Price +10 -> Final Price 110
Option C : Price +50 -> Final Price 150
Option D: Price +100 -> Final Price 200

You set a special price to this product reducing it with 10%. Then you'll have the following
You Have a product with a special price 90
The product has several otpions:
Option A: Price + 0 -> Final Price 90
Option B: Price +9 -> Final Price 99
Option C : Price +45 -> Final Price 135
Option D: Price +90 -> Final Price 180


The module works with the original opencart installation and only for radio type and select type options! Should also be working ok with themes that do not use auto price updates on option selects. When the theme includes live price update on options or such extension is installed - this moduke will probably not work properly with it! For such themes/extensions - a modification may be required. If you are unable to modify it for your theme or price updater module installed, please concat me before purchasing to see if I could make it work for your theme/extension.


If you need this extension for another version of Opencart 2, please contact me and I'll make one for that version and include it for download.

Some of the Themes and Extensions that the mod has been implemented with:
Journal 2
Journal 3
eMarket
Technopolis/ThemeBurgn (BurnEngine)
Porto
The free Extension "Ajax Live Options (Ajax Update Option Price)"

Ready fixes for the above mentioned themes and extensions are available with request (contact me via "GET SUPPORT") after purchase.
For not listed themes and/or extensions, please contact me via "GET SUPPORT" and I'll be happy to take a look and make it work for your configuration.

For shop owners running their stores with Journal 2, recommended extension to comply with the newest google requirements:
New Google Breadcrumbs requirements 2020 fix Journal 2