Universal Containers has a requirement to set a maximum discount approval threshold for the User.

Universal Containers has a requirement to set a maximum discount approval threshold for the User. This Threshold is a calculated value based on data held in a Custom Object. The Admin has determined that this will require two price rules. The first rule is a lookup rule that Pulls a value from a custom object record and set it to a custom field on the quote line. The second price rule evaluates if the custom field is populated, and if so, it calculates the maximum discount threshold using that value. Both Price Rules have Evaluation Events set to On Calculate. The Second Price Rule is not running. How should the Price Rules be altered so that the second Price Rule will run?