noun
quantity
KWAHN-tuh-tee/ˈkwɑːntəti/
An amount or number of something.
The tray holds a quantity of six apples.

Etymology
The “how much” base becomes a noun naming the property of having a certain extent or magnitude. From that abstract sense, quantity also came to name a particular amount or number of something.
In context
this is just based on total quantity of pits and foundations. And this gives us a total number of shifts for all these tasks.
More examples
- She measured the quantity.
- Several quantities were compared.
- The quantity increased.
Forms
quantity · quantities
quantitative adjective — concerned with measured amounts