pre_text: General and Administrative General and administrative expenses increased $71.5 million, or 66.5%, for the year ended December 31, 2019 compared to the same period in 2018, due to an increase of $28.7 million in employee-related costs ($12.2 million of which related to stock-based compensation and related payroll taxes), a $14.9 million increase in finance costs, which include an estimated net liability for non-recurring HST payable to the Government of Canada in the amount of $8.1 million related to 2019 and prior years, sales and use and other value added taxes, insurance, and bank fees, a $9.0 million increase in Shopify Payments losses driven by increased GMV processed through Shopify Payments, a $8.6 million increase in losses and insurance related to Shopify Capital driven by an expansion of our Capital offerings and programs, a $6.9 million increase in professional services fees for legal and tax services, including those related to our international expansion and the growth of our business, a $1.8 million increase in computer and software costs, and a $1.6 million increase in general bad debt expense. General and administrative expenses increased $71.5 million, or 66.5%, for the year ended December 31, 2019 compared to the same period in 2018, due to an increase of $28.7 million in employee-related costs ($12.2 million of which related to stock-based compensation and related payroll taxes), a $14.9 million increase in finance costs, which include an estimated net liability for non-recurring HST payable to the Government of Canada in the amount of $8.1 million related to 2019 and prior years, sales and use and other value added taxes, insurance, and bank fees, a $9.0 million increase in Shopify Payments losses driven by increased GMV processed through Shopify Payments, a $8.6 million increase in losses and insurance related to Shopify Capital driven by an expansion of our Capital offerings and programs, a $6.9 million increase in professional services fees for legal and tax services, including those related to our international expansion and the growth of our business, a $1.8 million increase in computer and software costs, and a $1.6 million increase in general bad debt expense. General and administrative expenses increased $39.7 million, or 58.7%, for the year ended December 31, 2018 compared to the same period in 2017, due to an increase of $30.3 million in employee-related costs, a $4.5 million increase in professional services fees for legal and tax services, a $4.0 million increase in finance costs, which includes insurance, sales and use and other value added taxes, and a $1.7 million increase in computer and software costs.
table: Years ended December 31, 2019 vs 2018 2018 vs 2017
table: 2019 2018 2017 % Change % Change
table: (in thousands, except percentages)
table: General and administrative $ 178,934 $ 107,444 $ 67,719 66.5 % 58.7 %
table: Percentage of total revenues 11.3 % 10.0 % 10.1 %
question: Analyse this data from a financial earnings document. What is the change in the average general administrative expenses between 2017-2018, and 2018-2019?