Table:
|  | 2019 | 2018 |
| --- | --- | --- |
| Revenues | 100.0% | 100.0% |
| Cost of revenues | 10.6 | 11.0 |
| Gross profit | 89.4 | 89.0 |
| Operating expenses: |  |  |
| Sales and marketing | 54.2 | 52.6 |
| Product development | 6.2 | 8.1 |
| General and administrative | 20.5 | 20.9 |
| Total operating expenses | 80.9 | 81.6 |
| Income from operations | 8.5 | 7.4 |
| Other income (loss), net | (0.5) | — |
| Income before income taxes | 8.0 | 7.4 |
| Income tax expense | 4.3 | 3.2 |
| Net income | 3.7% | 4.2% |
Paragraphs:
Results of Operations
The following table sets forth, as a percentage of total revenues, the results from our operations for the periods indicated.
Question:
What is the average cost of revenue for 2018 and 2019 as a percentage of total revenues?
Answer: (10.6+11.0)/2 = 10.8