A more efficient solution for managing manual price inputs with taxes included is to implement a feature in your Point of Sale (POS) system that automatically handles VAT adjustments. Instead of requiring the cashier to manually calculate the VAT-excluded price, the system can offer an option to toggle between "VAT included" and "VAT excluded" pricing modes. When the cashier inputs a price (such as €10), the system can detect whether the price is VAT included or excluded and calculate accordingly. If the price is VAT included, the system can automatically calculate the VAT-excluded price by dividing by 1.22 (for a 22% VAT rate in Italy). Conversely, if the price is VAT excluded, the system will add the VAT by multiplying by 1.22. Additionally, the POS could prompt the cashier to specify whether the price is VAT included or excluded via a simple checkbox or button, allowing the system to perform the necessary calculation automatically. This eliminates the need for the cashier to remember the VAT exclusion and ensures the correct pricing, streamlining the process and reducing errors.