Final answer:
The capacity utilization of ABC company over the past week is 87%.
Step-by-step explanation:
The capacity utilization of ABC company over the past week can be calculated as the ratio of actual output to design capacity. The design capacity is 10 tons per day when running four shifts with no breakdowns. The company has produced an average of 8.7 tons per day over the past week. To calculate the capacity utilization, divide the actual output (8.7 tons/day) by the design capacity (10 tons/day) and multiply by 100%.
So, the capacity utilization of ABC company over the past week is (8.7/10) * 100% = 87%.