I have two values that I have calculated the percent difference with. I used the absolute difference ober the average etc. How do I go about using that percentage as a reference to calculate a difference from a different value. Example below:
I have 69" and 64". I calculate the % difference to be 7.5% I have another value of 14" and would like to use the 7.5% difference to figure out the difference value from 14".
Would I use percent increase/decrease formula (whichever the 14" is related to) to calculate my new value?
Only way I've gotten the answer I really need is a long back calculation basically using ratios between the values I have and making my new value an unknown and my percentage a known. Is this the only way?
If I'm being too confusing I can elaborate or possibly even send a picture.