How to estimate the cost of a design project?

Question

User interface

Tell me which is better from your point of view or just tell us how you evaluate the design work?
At different times, we worked according to the following schemes:
- Evaluation of layouts, + UI
- Per-module evaluation
- General abstract figure, which, in our opinion, we should meet We understand
that there is still agile with hourly payment, while this is not our option.

Answer 1

Labor costs in hours based on previous experience multiplied by the hourly rate. It is natural to keep in mind that if you tell the client the cost per hour, not everyone will understand.