We calculate according to a business, there is no standard, depending on the time it takes, the degree of difficulty is different, we are all negotiated, and both parties can accept it.
We calculate according to a business, there is no standard, look at the time spent, the degree of difficulty is different to pay, we are negotiated, both sides can accept it
There is no standard for us to calculate according to a business. We all negotiate with each other to see how much time it takes and how difficult it is. We can accept it