Answer:
The capacity cushion is 33.33%
Explanation:
10 birdhours x 30 minutes: 300 minutes
60 minutes for color switch a total for 360 minutes every 10 birdhouses.
225 days per year x 8 hours per shift x 60 minutes = 108,000 minutes
108,000 minutes / 360 minutes = 300 lots of 10 bird per year
total birdhouse capacity per year: 3,000
capacity - used capacity = space capacity
3,000 - 2,000 = 1,000 spare capacity
capacity cushion: spare/total capacity: 1,000 / 3,000 = 33.33%
