Table:
|  | As of |  |
| --- | --- | --- |
|  | December 31, 2019 | December 31, 2018 |
| Deferred rent liability | $— | $506.7 |
| Unearned revenue | 525.9 | 504.6 |
| Other miscellaneous liabilities | 411.1 | 253.8 |
| Other non-current liabilities | $937.0 | $1,265.1 |
Paragraphs:
AMERICAN TOWER CORPORATION AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Tabular amounts in millions, unless otherwise disclosed)
10. OTHER NON-CURRENT LIABILITIES
Other non-current liabilities consisted of the following:
The reduction in Deferred rent liability is a result of the Company’s adoption of the new lease accounting standard.
Question:
What was the change in unearned revenue between 2018 and 2019?
Answer: 525.9-504.6 = 21.3