> For the complete documentation index, see [llms.txt](https://docs.letr.ai/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.letr.ai/en/pm_pay/2-additional-usage-payment.md).
# #2 Additional usage payment
## Usage deduction criteria
LETR WORKS provides the number of characters, video hours, and image usage per month depending on the subscription plan.
When creating a project, the usage is deducted according to the content and project type.
| Contents | Project | Deduction |
| :------: | :---------------------------: | :------------------: |
| Text | Correction/Translation/Review | Number of characters |
| Video | Transcription (Correction) | Video time |
| Video | Translation/Review | Number of characters |
| Image | Transcription (Review) | Number of images |
| Image | Translation/Review | Number of characters |
## Additional usage billing
If you don't have enough quota when creating a project, we'll estimate the additional cost based on the criteria below. You can pay an additional fee, and you'll be able to use it immediately.
| Category | Amount (excluding VAT) |
| :------------------: | :--------------------: |
| Number of characters | US$0.002/1 character |
| Video time | US$0.02/1 second |
| Number of images | US$0.2/1 image |
* However, DRM-enabled video projects will cost 25% more than regular video projects.
## Additional usage payment method
Exceeding the basic quota
Additional payment instructions
1. If you run out of quotas when creating a project, a pop-up will appear with instructions.
2. When you click the 'Additional Payment' button in the pop-up window, it will show the additional payment amount.
3. Confirm and pay for the additional payment.
4. The creation of the project is complete.