Sometimes when using outsourcing services a client can be shocked and even struck dumb with astonishment when they get a bill payable. Statistics show outturn costs can exceed expected by 65%. That does not mean a vendor wants to fool you, not at all.
The thing is many clients do not take into consideration unobvious outsourcing principles. They see only costs that lie on the surface. That’s why, when the work is done, they often get blindsided by the huge sums of money they need to pay for the services as this may not fit their budgets.