Enter the new control limit, old control limit, and the control limit change ratio into the calculator to determine the missing variable.
Control Limit Change Ratio Formula
The following formula is used to calculate the control limit change ratio for a given new and old control limit.
R = (N - O) / O
Variables:
- R is the control limit change ratio
- N is the new control limit
- O is the old control limit
To calculate the control limit change ratio, subtract the old control limit from the new control limit. Divide the result by the old control limit to find the ratio.
What is a Control Limit Change Ratio?
A control limit change ratio is a measure used to determine the relative change between an old control limit and a new control limit. This ratio is important in various fields such as quality control, manufacturing, and process management, where maintaining specific control limits is crucial for ensuring product quality and process stability. By calculating the control limit change ratio, one can assess the impact of changes in control limits and make informed decisions to maintain optimal performance.
How to Calculate Control Limit Change Ratio?
The following steps outline how to calculate the Control Limit Change Ratio.
- First, determine the new control limit (N).
- Next, determine the old control limit (O).
- Finally, calculate the control limit change ratio using the formula R = (N – O) / O.
- After inserting the values and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
New control limit (N) = 120
Old control limit (O) = 100