How to create a Sliders with Calculated result widget to show total cost of an order?

Was having a look at you Widget Plugins, particularly the 'Sliders with Calculated Result' and hoping to create a form similar to the form I have linked, but using the slides instead. 

The bit I dont understand is how to add values to quantities. 

For Example:

1 Scanned Prints Costs 10p

1 Scanned 35m Sost £5

And they set the slide to 5 Prints and 2 Fims

Subtotal: £10.50

I understand how to add the quantities onto the slider, but not how to give the quantity of 1 a price/value, if that makes sense?

Hello and thank you for contacting our Support.

I found the way to do that.

I set two sliders, one 1 Scanned Prints Costs 10p for and one for 1 Scanned 35m Cost £5.

The first one will be like this:

The second one:

And the result:

You can check my form and see how it works: https://form.jotform.com/70222489157963

But for example here is how it works with your numbers:

Please let us know how it worked for you.

Thank you!