Results slides: score points and score percent oddity

I have a Quiz Bank (5 questions, each worth 10 points, all are each is presented) that is linked to Results Slide.

But when the results are displayed, there's something very odd (see attached).

How can it be that I scored 50 points, but the score percent variable is calculated as 0%?  Likewise, the passing score displayed is 80%, but the passing points is displayed as zero?

Any clues?

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