Did you sleep thru economics 101  

Try and explain it so you will understand.

If at your play ground there are 100 marbles to play with, the value of having a few marbles is about the same each play day.  But what happens if one day there are more marbles at the play ground, like 130 of them.  Oh! Boy! You get a few more marbles each play day, but the value of the marbles gets smaller.  Before you could get a kiss from Betty Sue for just 2 marbles, now it takes 3.  More marbles around soon they have less value!

And

If you trade your marbles to a different place and all of a sudden the other place thinks your marbles are (shitty) not worth as much as before, you will need to give them more of your marbles for the same trade.  like before it was just 2 marbles now it is 3 marbles.  Don't cry, your marbles just are not worth as much at different places.

And 

let's say you buy your marbles, like 10 for 10 pennies.  Lots of them in the store, the supply is good, and only a penny.  But the guy that makes the marbles has to stay home and can't make marbles.  No new marbles.  Soon the store starts to run out of marbles.  Fewer and fewer marbles in the store.  What happens?  The marbles become 1 for 2 pennies.  You hope the marble maker gets to got to work!

I hope that helps,  useful idiot