Reverse calculation of taxes on products. (so i can enter final prices including taxes and IP can reverse calculate)

Feature Requests
1

You have a product you want to sell for $110 including 10% tax.

Normally in InvoicePlane:

  • You would enter $100
  • 10% tax ($10) would be added.

With reverse calculation:

  • You enter $110
  • System calculates:
    • Net price = $100
    • Tax amount = $10