Table:
|  | As of December 31, |  |
| --- | --- | --- |
|  | 2018 | 2019 |
| Derivative assets carried at fair value through profit or loss (FVTPL) |  |  |
| Interest rate swaps | 15,188 | 18 |
| Forward foreign exchange contracts | — | 389 |
| Derivative assets designated and effective as hedging instruments carried at fair value |  |  |
| Cross currency swaps | — | 3,594 |
| Total | 15,188 | 4,001 |
| Derivative financial instruments, current assets | 6,222 | 429 |
| Derivative financial instruments, non-current assets | 8,966 | 3,572 |
| Total | 15,188 | 4,001 |
Paragraphs:
GasLog Ltd. and its Subsidiaries
Notes to the consolidated financial statements (Continued)
For the years ended December 31, 2017, 2018 and 2019
(All amounts expressed in thousands of U.S. Dollars, except share and per share data)
26. Derivative Financial Instruments
The fair value of the derivative assets is as follows:
Question:
What was the change in fair value of interest rate swaps from 2018 to 2019?
Answer: 18 - 15188  = -15170