[[I:Mathematically speaking you just asked the difference in the ratios.  X = 6000/1 - 1300/1  X = 6000 - 1300  X = 6000      - 1300    ____  X =  4700    BUT, check out this site! I believe this is the info you're looking for? It explains it in very simple, yet  knowledgeable details and terms!  … Read more