20% of occupants vs. 20% of occupants

The credit language says  "Agree to develop a plan for corrective action if the survey results indicate that more than 20% of occupants are dissatisfied", while the LEEDuser's viewpoint says "Develop a plan for corrective action in case more than 20% of respondents report dissatisfaction".  These could be two very different numbers.  Let's say a building has 1,000 occupants, but only 100 people responded to the survey.  Do we need corrective action if 200+ people are dissatisfied, or 20+ people are dissatisfied?  It could be assumed that people who are comfortable are less likely to respond, so even if all 100 people who responded are uncomfortable, we really don't have 20% of people dissatisfied.  Also, in this same scenario, if the responses are are equally too hot and too cold in the same parts of the building (fighting over the thermostat), what would you suggest for corrective action?  Thanks.