Table:
|  | January 31, 2020 | February 1, 2019 |
| --- | --- | --- |
| Balance, beginning of the year | $966 | $1,059 |
| Additions to intangible assets related to business combinations | 622 | 154 |
| Amortization expense | (300) | (247) |
| Derecognized leasehold interest | (116) | — |
| Balance, end of the year | $1,172 | $966 |
Paragraphs:
Definite-Lived Intangible Assets, Net
The following table summarizes the changes in the carrying amount of definite-lived intangible assets during the periods presented (table in millions):
Upon adoption of Topic 842 on February 2, 2019, leasehold interest of $116 million related to favorable terms of certain ground lease agreements was derecognized and adjusted to the carrying amount of the operating lease ROU assets and classified as other assets on the consolidated balance sheets. Prior to adoption, these assets were classified as intangible assets, net on the consolidated balance sheets.
Question:
What was the percentage change in the balance at the end of the year between 2019 and 2020?
Answer: (1172-966)/966 = 21.33