DCS Calculated fields calculation order

I have 2 expressions:

1. price = function(entity, nomenclatura);  // global function
2. value = price * condition

The system gives me error on value calculation that price is not available. How to indicate to the system to use first expression result?

I know I can use User fields, but I do not know how to present the result of user fields in totals. There is no price for totals, so it is impossible to calculate total value. And if it is user field I can't put it into calculated fields.

Hello, Alexey Gerasimov.

Would you please create a sample configuration where I could reproduce this problem? Then I could assist you with a solution.