pre_text: Selling, General and Administrative Selling, general and administrative expense decreased $13.0 million to $88.8 million for the year ended December 31, 2019, as compared to $101.8 million for the year ended December 31, 2018. The decrease was primarily due to a decrease in intangible asset amortization of $8.9 million as certain assets reached the end of their useful lives, as well as decreases in payroll-related expense of $1.7 million due to lower headcount, professional fees of $1.3 million, outside services of $0.5 million, and travel-related expenses of $0.3 million. We expect selling, general and administrative expenses to remain relatively flat in the near-term; however, our expenses may increase in the future as we expand our sales and marketing organization to enable market expansion.
table: Year Ended December 31, % Change
table: 2019 2018 2019
table: (dollars in thousands)
table: Selling, general and administrative $88,762 $101,789 (13)%
table: % of net revenue 28% 26%
question: Analyse this data from a financial earnings document. What is the average % of net revenue for the Years Ended December 31, 2019 to 2018?