Update payment amount automatically based on a user input of a field

Update payment amount automatically based on a user input of a field

I'm currently working on setting up a Zoho Form for a spanish learning academy to manage client enrollment for in-person and online classes. Specifically, I'm configuring the form for our Children Programs: Tutoring classes. Since our pricing isn't always fixed, I'm trying to account for that in the form. The challenge is that the price fluctuates based on the number of hours chosen. For instance, if a client selects 1 hour, the price is $70.00, and it scales up to $315.00 for 5 hours. Does anyone have experience setting up dynamic pricing in Zoho Forms or similar platforms? I'm looking for advice on the best way to implement this, so the form automatically calculates the total based on the hours selected without needing manual intervention every time the prices change. Any insights would be appreciated!