To do this, open the created project and then select the Valuation tab.

Then we choose whether the offer is to include VAT or take into account the discount and select the currency in which the valuation is to be made.

Next, we define the values of the Items on the Valuation: Panels, Inverter and Other.

The different steps are explained here: https://easysolar.app/ufaqs/the-step-by-step-project-valuation-instruction/