The simplest, cleanest way to score an objective is by averaging the percentage completion rates of its associated key results. Google uses a scale of 0 to 1.0: 0.7 to 1.0 = green.* (We delivered.) 0.4 to 0.6 = yellow. (We made progress, but fell short of completion.) 0.0 to 0.3 = red. (We failed to make real progress.)
