DAS Supplier Scorecard formula

We have configured the DAS(Delivery, Accuracy, and Service) formula in our supplier scorecard, but it appears that the formula is not working as expected. Despite following the configuration steps, the results are not being calculated correctly.

For Your reference,

We would like to rate our vendors based on :
Delivery Adherence Score (DAS): DAS = (Promised delivery time (days) / Actual delivery time (days)) * 100

Instead of these, what variables I can use? These variables are not successful for us.
kindly provide us, the correct formula for this.