TOPIC: Hold Off Displaying Price?

When we configure an event, it is set up with a "base" price. Then we use Custom Fields that can add (or subtract) to (from) the base price.

The "base" price shows up on the first screen where the user keys in their information. Then, based on the values of the Custom Fields, the price can change.

When they go to pay, users wonder why the amount is different than what they saw on the initial screen.

Is there a way to hold off displaying price until the final value is calculted?