Adding extra product with variable amount

Is there a way to add a pull down amount with the amounts 250, 500, 750, 1000, 1500, 2000, 2500, 5000.

I have been trying but I can get the figures in the option but the prices can't be seen in the registration form. What am I doing wrong?

You must be referring to Sub Products option in the Payment field.

Please refer to our user guide on how to : Create-Sub-Products-Based-on-a-Product-Option

You can check it in action on my demo form https://form.jotformpro.com/61069465236964

Let us know how we can be of further assistance.