# FAQ

| **Question**                                                                       | **Answer**                                                                                                                                                                                           |
| ---------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| How does the subscription work?                                                    | There are currently 2 plans available, starter and premium, which provide an array of functions for the Chain of Demand platform. Currently billing is on a monthly and annual basis.                |
| Can I cancel my subscription?                                                      | Plans expire at the end of the subscription period.                                                                                                                                                  |
| I’m interested in an asset that isn't currently available, can I put in a request? | We are expanding our asset coverage on an ongoing basis, email us at [support@chainofdemand.co](https://chain-of-demand.gitbook.io/chain-of-demand-docs/links) to tell us what we should cover next! |
| How are price predictions calculated?                                              | Based on the data inputs selected, our platform runs a series of machine learning models and generate predictions.                                                                                   |
| How many years of data does your dataset contain?                                  | We generally hold two years worth of data, however this may vary due to data availability of different assets.                                                                                       |
| How do you collect your data?                                                      | We collect our data using our proprietary data collection process through a variety of online sources and alternative channels.                                                                      |


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