Note 8. Goodwill and Intangible Assets, net

As a result of sustained decreases in the Company’s publicly quoted share price, lower market multiples for a relevant peer group, and challenging macroeconomic conditions, the Company concluded there were impairment indicators and conducted a quantitative goodwill impairment assessment, including additional testing of its definite-lived intangibles, and other long-lived assets as of September 30, 2022. As a result of this assessment, the Company did not identify an impairment to its definite-lived intangible assets or other long-lived assets, but the Company recorded a $1,066,564 non-deductible, non-cash goodwill impairment charge (or $19.27 per basic and diluted share) for the three and nine months ended September 30, 2022 in our unaudited consolidated statements of comprehensive income (loss).

The Company estimated the fair value of the Company using an equal allocation between the discounted cash flow method under the income approach and the public company guideline method under the market approach. The significant assumptions used in the valuation include revenue growth rates, future gross profit margins and operating expenses used to calculate projected future cash flows, determination of the weighted average cost of capital, and future economic and market conditions. The terminal value is based on an exit revenue multiple which requires significant assumptions regarding the selections of appropriate multiples that consider relevant market trading data. The Company bases its estimates and assumptions on its knowledge of the digital manufacturing industry, recent performance, expectations of future performance and other assumptions the Company believes to be reasonable.

Aggregate amortization expense related to intangible assets, excluding goodwill which is not amortized, was $4,535 and $2,887 for the three months ended September 30, 2022 and September 30, 2021, respectively, and $13,675 and $7,892 for the nine months ended September 30, 2022 and September 30, 2021, respectively. There are no intangible assets, other than goodwill, with indefinite useful lives.