# đŸ’²Customers profile: discount card
**LTV indicator in the card user profile.** For a cardholder, LTV represents the total amount of all their purchases since they joined the loyalty program (from the moment their loyalty card was issued). It is calculated as the *purchase sum* from visits — the same value used as revenue in ROI statistics.
### Add/Deduct Client Amount
Transaction amount can be added or deducted in the client’s profile
If you click the + icon a pop up appears asking how much increase balance and if the - icon, how much decrease balance.
Value: Enter the same figure as the Purchase Amount field under value. The system uses this to calculate the exact discount value based on the card setup. For example, if a card gives 1% back and you enter $50, the system calculates and applies 0.50 discount.
Purchase Amount: Enter the monetary value associated with the transaction, whether it's the value of a purchase, a refund, or any relevant financial adjustment.
After filling in the details, click Apply to save the changes.
If it’s an addition, the system shows it as a discount amount. If it’s a subtraction, it appears as a refund of the amount spent.
