I have scenario as below.
Our client procuring ferrous material. the rate is based on Chromium %.
Current situation is that if Cr % is between 57 - 63 the rate is 100 Rs / kg. on 60 % prorata basis.
Purchase Order will be generated with rate 100 Rs./Kg for required quantity.
Ie. if GR receipt with Cr % 61, then the rate of Material will be 101.66 Rs./Kg. (61/60*100)
if GR receipt with Cr % 59, then the rate of Material will be 99.33 Rs. Kg. (59/60*100)
How to Map this in SAP.