The phrase "and calculating the amount" is correct and usable in written English.
It can be used when discussing the process of determining a specific quantity or value in a mathematical or financial context.
Example: "The final step in the project involves gathering all the data and calculating the amount needed for the budget."
Alternatives: "and determining the total" or "and figuring out the sum".
By applying several structural calculations and calculating the amount of pressure in the support elements and estimating their maximum resistance capacities, it is possible to determine the isolated safety factors for the different elements.
That means measuring the distance you travel by public transport, bike or walking and calculating the amount of CO2 you've saved in the process, with a points system to keep you motivated.
The degree of rotation between the free caudal vertebrae was calculated by graphing the rotation between the pelvis and first free caudal as 15° and the rotation between the intermediate caudal and first handle vertebra as zero, then taking the slope of the line (y = 1.25x+16.25) and calculating the amount of rotation for the vertebrae in between.
The absorbance is measured photometrically at 520 nm and calculating the amount of reduced ferric ions.
Then they assessed the density of the snow in each square, measured how much the surface had lowered, and calculated the amount of snow the algae were melting.
After exploring various reasons for the slow uptake, I asked her to look at her calendar and calculate the amount of time she personally spent on these initiatives.
We study scenarios where vectors and hosts mix homogeneously as well as heterogeneously and calculate the amount of baits required to prevent a malaria outbreak.
We were able to estimate p (3 46%) and ψ (12 96%) for each species and calculate the amount of unsuccessful effort necessary to declare absence of each species with statistical confidence (5 63 visits; 150 1890 trap-nights).
Based on videotaped observations of play sessions of small children, the researchers recorded how often the children placed toys and hands in their mouths and calculated the amount of pesticide they would be exposed to if those toys and hands had been contaminated.
