Table:
|  | 2019 | 2018 |
| --- | --- | --- |
| Buildings and improvements | $23,717 | $23,717 |
| Machinery and equipment | 12,293 | 10,995 |
| Capital assets in progress | 11,831 | 7,747 |
| Total property, plant and equipment held under capital leases, gross | 47,841 | 42,459 |
| Less: accumulated amortization | (8,762) | (6,123) |
| Total property, plant and equipment held under capital leases, net | 39,079 | 36,336 |
Paragraphs:
3. Property, Plant and Equipment
Assets held under capital leases and included in property, plant and equipment as of September 28, 2019 and September 29, 2018 consisted of the following (in thousands):
Amortization of assets held under capital leases totaled $3.8 million, $3.4 million and $3.0 million for fiscal 2019, 2018 and 2017, respectively. Capital lease additions totaled $6.7 million, $11.8 million, and $20.5 million for fiscal 2019, 2018 and 2017, respectively.
As of September 28, 2019, September 29, 2018 and September 30, 2017, accounts payable included approximately $10.0 million, $11.2 million and $10.8 million, respectively, related to the purchase of property, plant and equipment, which have been treated as non-cash transactions for purposes of the Consolidated Statements of Cash Flows.
Question:
What was the percentage change in the accumulated amortization between 2018 and 2019?
Answer: (-8762-(-6123))/-6123 = 43.1