Futures corn 10 ton, and the main corn contract in 2005 closed at 19 15 yuan/ton today.

The corn margin of futures companies is generally 7~ 10%. According to today's closing price, the first-hand corn deposit is1340.5 ~1915 yuan.

19 15× 10×0.07= 1340.5,

19 15× 10×0. 10= 19 15。