Math Formula - mapping large range to smaller range of numbers

[cruisecontrol]

this is like elementary school math, how does someone who trades options need help with this

 

[easymon1]

https://www.mathsisfun.com/measure/unit-conversion-method.html

This is for something different, but it is more fun, use it instead.
overjoyed yet? try this then,
https://yippy.com/search?query=Histogram+Bins+in+Excel

 

[ionone]

formula is :
Y = (D - C)*(X - A) / (B - A) + C
really easy basic formula