The grading system used in the EcoCheck environmental report cards is a simple, systematic ranking scale. The one hundred point scale is divided into five equal categories; A (80-100), B (80-60), C (60-40), D (40-20) and F (20-0). Furthermore, the grades have a plus and minus scale, so that the upper 5 points of the 20 point range results in a plus score and the lower 5 points of the 20 point range results in a minus score.
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