Project estimate
Hours × rate + buffer + platform fee → client price
Input
Client price
base 20 000 + buffer 4 000 + fee 2 667
26 700 ₴
- Hours × rate
- 20 000 ₴
- + buffer 20%
- 24 000 ₴
- + fee 10%
- 26 667 ₴
A 15–30% buffer for the unknown is standard. Upwork takes 10%, Fiverr 20% — add it to the price, not to your cost.