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NSS College of Engineering (NSSCE), Palakkad
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Cost Slope Solution

STEP 0: Pre-Calculation Summary
Formula Used
cost_slope = (Crash cost-Normal cost)/(Normal time-Crash time)
CS = (CC-NC)/(NT-CT)
This formula uses 4 Variables
Variables Used
Crash cost- Crash cost is the cost associated when the project is completed with the crash time of the project.
Normal cost- The normal cost is the cost associated when the project is completed within the normal time.
Normal time - Normal time is the amount of time initially planned to complete the activity. (Measured in Day)
Crash time - Crash time is the amount of time that activity will take if the additional resources are expended. (Measured in Day)
STEP 1: Convert Input(s) to Base Unit
Crash cost: 400 --> No Conversion Required
Normal cost: 300 --> No Conversion Required
Normal time: 3 Day --> 259200 Second (Check conversion here)
Crash time: 2 Day --> 172800 Second (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
CS = (CC-NC)/(NT-CT) --> (400-300)/(259200-172800)
Evaluating ... ...
CS = 0.00115740740740741
STEP 3: Convert Result to Output's Unit
0.00115740740740741 --> No Conversion Required
FINAL ANSWER
0.00115740740740741 <-- Cost slope
(Calculation completed in 00.031 seconds)

5 Other formulas that you can solve using the same Inputs

Normal Cost when Slope is Known
normal_cost = -((Cost slope*(Normal time-Crash time))-Crash cost) Go
Crash Time when Slope is Known
crash_time = -(((Crash cost-Normal cost)/Cost slope)-Normal time) Go
Crash Cost when Cost Slope is Known
crash_cost = (Cost slope*(Normal time-Crash time))+Normal cost Go
Normal Time when Slope is Known
normal_time = ((Crash cost-Normal cost)/Cost slope)+Crash time Go
Crashing
cost_slope = (Crash cost-Normal cost)/(Normal time-Crash time) Go

1 Other formulas that calculate the same Output

Crashing
cost_slope = (Crash cost-Normal cost)/(Normal time-Crash time) Go

Cost Slope Formula

cost_slope = (Crash cost-Normal cost)/(Normal time-Crash time)
CS = (CC-NC)/(NT-CT)

What is Cost Optimization?

The Cost Optimization is a process that should be carried out throughout the construction period to ensure that the cost of the building is kept within the estimated cost limits. Cost optimization of a project involves the collecting and measuring the cost record of a project and the work progress.

How to Calculate Cost Slope?

Cost Slope calculator uses cost_slope = (Crash cost-Normal cost)/(Normal time-Crash time) to calculate the Cost slope, The Cost Slope is useful for project analysis. It is the ratio of increase in cost to decrease in time. . Cost slope and is denoted by CS symbol.

How to calculate Cost Slope using this online calculator? To use this online calculator for Cost Slope, enter Crash cost (CC), Normal cost (NC), Normal time (NT) and Crash time (CT) and hit the calculate button. Here is how the Cost Slope calculation can be explained with given input values -> 0.001157 = (400-300)/(259200-172800).

FAQ

What is Cost Slope?
The Cost Slope is useful for project analysis. It is the ratio of increase in cost to decrease in time. and is represented as CS = (CC-NC)/(NT-CT) or cost_slope = (Crash cost-Normal cost)/(Normal time-Crash time). Crash cost is the cost associated when the project is completed with the crash time of the project, The normal cost is the cost associated when the project is completed within the normal time, Normal time is the amount of time initially planned to complete the activity and Crash time is the amount of time that activity will take if the additional resources are expended.
How to calculate Cost Slope?
The Cost Slope is useful for project analysis. It is the ratio of increase in cost to decrease in time. is calculated using cost_slope = (Crash cost-Normal cost)/(Normal time-Crash time). To calculate Cost Slope, you need Crash cost (CC), Normal cost (NC), Normal time (NT) and Crash time (CT). With our tool, you need to enter the respective value for Crash cost, Normal cost, Normal time and Crash time and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Cost slope?
In this formula, Cost slope uses Crash cost, Normal cost, Normal time and Crash time. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • cost_slope = (Crash cost-Normal cost)/(Normal time-Crash time)
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