need help please, converting 4-20 to 0-100% with ADC

need your help, please..
i wanna know, how an ADC can represent a value of a sensor...?
please tell me with this condition, if i have a sensor 4-20mA then i want to represent the value to 0% up to 100%, and my ADC is 12bit resolution..
really appreciate with ur help...
thank you

12bit resolution is 0-4095.

Scaling Factor = (Scaled Max-Scaled Min)/(Raw max-raw Min)

Scaling Factor = (100-0)/(4095-0)

Scaling Factor = (100)/(4095)

Scaling Factor = .0244

Scaled Value = Scaling Factor*Raw Data

100 = .0244*4095

thanks mickey, so if 80% its should be 0.08*4095, is it right?
how can we generate this value into PLC?

No, if you have 80% of your input then the Raw data value would be 3276.

.0244*3276=80 or close to it.

What PLC are you using? And does it support floating point math.

Edit: I see your other post, I am not familiar with Omron PLCs.

See links below for some light reading about scaling.

http://www.ronbeaufort.com/y=mx+b_part1.pdf

http://www.ronbeaufort.com/y=mx+b_part2.pdf

thanks mickey, i have read from an example program, its using pressure transmitter, range 0-50kgf/cm2, it will be converted into analog input with range 0-10volt, read in Analog input with BCD Format
the writer write that 0 kgf/cm2 is 0 in BCD, and50kgf/cm2 is 5530 in BCD, he use Analog input omron C200H-AD002H, which is the digital data is in 12 bit binary or 4 BCD format, and the resolution 1/4000,
its store data in 12 bit binary, is it means that the ADC is 12bit?
and how to convert 50kfg/cm2 become 5530 in BCD format
Kind regards
tq