calculation / price change does not work

I like to buy the Pro version, if that works better, only the price has to be shown …

Besides, thank you very much and stay healthy …

You just got the wrong concept. “the radiobuttons have a price per option” yes, they have, but only main formula sets price. So, you can set price/rate for options, but it does not change price in anyway until you actually use option’s variable in the main formula somehow.

Quick example: Text Input option, type number, has unique slug uni_cpo_width, so its variable looks like {uni_cpo_width} and this variable holds whatever value users inputs in the option field. If user inputs ‘5’, variable {uni_cpo_width} equals ‘5’. Now open main formula modal window and simply add {uni_cpo_width}. Save! Now the product’s price equals whatever user inputs in the option field. Let’s make it more complex, make your formula like this: {uni_cpo_width}*2+1. Now product’s price is being calculated according to this maths formula. Example: if user inputs ‘7’, then the price becomes 7*2+1 = 15. The price is ’15’!

Another example: Select based option Size with suboptions (prices in brackets) X [1], M [5] and L[7] and the option’s slug is uni_cpo_size. Set main formula to this {uni_cpo_size} (just variable, yes) and the price will become ‘1’ when user selects X or ‘7’ if he selects L.

Simple! Just set main formula.