quantify
verb [ T ]
uk/ˈkwɒntɪfaɪ/ usto measure the size or amount of something and express it as a number:
difficult/hard/impossible to quantify The economic costs of IT complexity are hard to quantify.
He said it was too early to quantify the total financial impact of the hurricanes.
quantification
noun [ U ]
The question was not simply one of quantification of damages, it was one of liability.