To calculate the number of cement bags required, one cubic meter of cement is divided by 50 to yield approximately 28.80 bags per cubic meter. For a specific volume like 0.792 cubic meters, multiplying this value with the bag count gives around 22.81 bags needed for concreting purposes. Additionally, determining metal quantities involves calculating dry material volumes such as converting five double four into an equivalent volume (1.584 m³). These calculations ensure precise measurement in construction projects.